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31results about How to "Easy to insert and fix" patented technology

Method for installing profile steel cold saw blade

The invention discloses a method for installing a profile steel cold saw blade. The method is characterized by including the steps that corresponding assembly positioning holes are formed in the saw blade and a fixing disc; the saw blade and the fixing disc are relatively vertically fixed through an auxiliary device; matched positioning pins are inserted into the assembly positioning holes in the saw blade and the fixing disc, and then the saw blade and the fixing disc are relatively positioned; connecting bolts between the saw blade and the fixing bolt are installed and connected, and then installation is finished. The method for installing the profile steel cold saw blade has the advantages that installation convenience and safety of the saw blade can be improved, and labor efficiency is improved; the adopted auxiliary device assists users in installing and connecting the saw blade and the fixing disc, so that the saw blade and the fixing disc can be more quickly, conveniently and safely installed and connected with less effort.
Owner:CHONGQING IRON & STEEL (GRP) CO LTD

Device for improving bearing performance of steel arch of dilative soil large-section tunnel

The invention discloses a device for improving the bearing performance of a steel arch of a dilative soil large-section tunnel. The device comprises an arched support. High-strength round spiral steel bars and rigid supporting bases are arranged at large arch feet at the bottom of the arched support, each large arch foot comprises an upper-layer steel plate and a lower-layer steel plate connected with the upper-layer steel plate through five high-strength round spiral steel bars in a plum pile mode, and the rigid supporting bases penetrate through the high-strength spiral steel bars; five supporting base insertion grooves are formed in each lower-layer steel plate, and the supporting base insertion grooves are used for fixing the supporting bases so as to guarantee the overall stability of the steel arch. The device can relieve the settlement deformation of surrounding rock at the initial stage of excavation of the dilative soil tunnel, improve the self-stabilization capacity of the tunnel effectively and lastingly, form a multifunctional surrounding rock reinforcement area and guarantee the safety of tunnel constructors and protect equipment.
Owner:SHANDONG UNIV

Standard gripping device of pallet exchange system

InactiveCN107433484AEasy to insert and fixIncrease Teach ToleranceMetal working apparatusEngineeringPallet
A standard grabbing device for a pallet exchange system, comprising a grabbing device main disc connected to the end of a robot grabbing arm and a grabbing device tool disc connected with a standard pallet; the grabbing device main disc includes a main disc base body, on which There are positioning taper pins and ball cages protruding outward; the tool tray of the grabbing device includes a tool tray base that can be inserted into the ball cage, and the tool tray base is provided with a standard tray connection port and a tool tray for fixing the ball cage snap ring. The main disc of the grabbing device of the present invention switches between different standard trays through the tool tray of the grabbing device, thereby realizing the replacement of different processed products. The split structure is adopted, and the processing is simple and the processing quality is easy to ensure. The upper processing has a lead-in angle, which increases the teaching tolerance of the robot and reduces the difficulty of teaching. The overall structure of the present invention is simple and reliable, and the alignment is quick and easy to use.
Owner:西安精雕软件科技有限公司

Computer mainframe box used for computer hardware development and convenient for mainboard installation

The invention discloses a computer mainframe box convenient to install a mainboard for computer hardware development in the technical field of computers; the computer mainframe box comprises a mainframe box body, wherein a mainboard fixing mechanism is installed in the mainframe box body; the mainboard fixing mechanism comprises supporting legs, a fixing plate, a lower clamping block and an upper clamping block, the supporting legs are fixedly connected to the inner wall of the mainframe box, a hinge shaft is inserted into the supporting legs, the fixing plate is hinged to the surface of the hinge shaft, and the lower clamping block is fixedly connected to the surface of the fixing plate; and the surface of fixing plate is fixedly connected with mounting seat. The computer mainboard fixing device has the beneficial effects that the mainboard can be fixed without screws, the mainboard can be fixedly mounted quickly, and meanwhile, the situation that the screws are prone to loosening due to corrosion after being used for a long time is avoided; in addition, the device can be suitable for mainboards of different models and sizes in the installation process, and meanwhile wires can be clearly arranged after installation.
Owner:SUZHOU VOCATIONAL UNIV

Electronic connector and assembling method and equipment thereof

The invention relates to the field of electronic components. The invention discloses electronic connector assembling equipment which comprises a rack and also comprises a contact pin assembling device, a transferring and conveying device and a shell assembling device which are arranged on the rack, the contact pin assembling device is used for cutting a contact pin and then directly assembling thecontact pin with an insulating base; the transferring and conveying device is used for conveying and transferring the insulating base and an assembly part of the contact pin to the shell assembling device, the shell assembling device is used for assembling the insulating base and the assembly part of the contact pin with a shell, and after assembling, transferring, conveying and discharging are conducted through the transferring and conveying device. The electronic connector assembling equipment has the advantages that the pin is directly assembled with the insulating base after being cut such that the assembly quality of the pin, the shell and the insulating base is improved.
Owner:深圳市深凯精密五金有限公司

Integrated rainwater recycling-storage-dispatching system and method

The invention discloses an integrated rainwater recycling-storage-dispatching system and method. The system comprises a filterer, a down-seep well, a water storage tank, an overflow water tank and a purifying device. A filtering frame body is arranged in the filterer, and comprises a rack body, a support fixing block and a first baffle. Water level detecting devices are arranged in both the water storage tank and the overflow water tank. A buffering device and a submerged pump are arranged at the bottom of the water storage tank. The construction method comprises the steps of S1, excavating a foundation pit, S2, conducting the construction of the water storage tank and the overflow water tank, S3, conducting the construction of the submerged pump and the buffering device, S4, establishing the down-seep well, S5, conducting the paving of a first down-seep pipe and a second down-seep pipe, S6, installing the filterer and the purifying device. The integrated rainwater recycling-storage-dispatching system and method have the advantages of being simple in structure, strong in practical application, and convenient to install. After the installation of the water storage tank, the other equipment are installed directly on the top surface of the water storage tank without any problem of elevation differences, therefore the trouble of pipe matching is saved, and the whole construction is made easier.
Owner:ZHEJIANG SHUANGLIN PLASTIC MACHINERY

Liquid illuminator and assembly thereof

An illuminator (20) and a liquid container assembly including the illuminator are disclosed. The illuminator (20) includes a light source (24), a power source and a coupling portion (22). The coupling portion (22) is flexibly compressible such that the illuminator (20) is easily inserted and secured within a space of a suitable size provided on the surface of the liquid container. The illuminator (20) can be used in combination with various liquid container such as drinking glass or liquid bottle to provide illumination to the liquid in the container.
Owner:PULZ

Groove blade coating clamp

The invention discloses a groove blade coating clamp. The groove blade coating clamp comprises at least two supporting plates which are arranged side by side, at least one blade blocking strip group and blade baffle strips which are in one-to-one correspondence to the blade blocking strip group, wherein the blade blocking strip group comprises two blade blocking strips which are connected with allsupporting plates, so that the blade blocking strips are supported by the supporting plates; a plurality of slot holes are formed in the blade blocking strips in parallel, and notches in the two blade blocking strips of the blade blocking strip group are in one-to-one correspondence, and groove blades are inserted into the two corresponding slot holes; the blade baffle strips are detachably mounted on the supporting plates, and the blade baffle strips are positioned between the two blade blocking strips of the corresponding blade blocking strip group; and all groove blades spliced into the blade blocking strip group are in pressure connection to prevent the groove blades from being separated from the notches. The groove blade coating clamp can conveniently place in groove blades, is convenient in operation, is accurate in positioning, is convenient for fixing the groove blades, and is beneficial for surface treatment of the groove blades.
Owner:ZHUZHOU CHAOYU INDAL

Drip irrigation equipment for corn field

The invention discloses maize field drip irrigation equipment. The equipment comprises a water inlet pipe, a cylinder body, an insertion rod, a circular table body and a second spring, wherein a plurality of drip irrigation pipes arrayed annularly are inserted in the outer side of the cylinder body, cavities are connected between the drip irrigation pipes and the side wall of the cylinder wall, the side wall of the cylinder body is further connected with a plurality of supporting rods arrayed annularly, the inner sides of the supporting rods are fixedly connected with circular rings, the supporting rods are movably sleeved with first sliding blocks, first springs are connected between the first sliding blocks and the circular rings, the tops of the first sliding blocks are fixedly connected with second sliding blocks, the second sliding blocks are in slidable contact with the side wall of the circular table body, the outer sides of the first sliding blocks are fixedly connected with first connecting blocks, the first connecting blocks are connected with sucking discs, the outer sides of the first connecting blocks are also connected with hemispheroids, the outer sides of the hemispheroids are connected with dredging needles, the dredging needles are movably inserted in the drip irrigation pipes, and the hemispheroids are selectively located in the cavities. The maize field dripirrigation equipment can improve the deficiency in the prior art and has a better anticlogging effect.
Owner:SHANDONG DENGHAI SEEDS CO LTD +1

Production method of cooling fin for friction stir welding

The invention relates to the technical field of cooling fin manufacturing, in particular to a method for producing a cooling fin through friction stir welding, which comprises the following steps: shortening: cutting a long raw material into a plurality of sections of short materials; connecting, specifically, the two short materials are clamped side by side, so that the heat dissipation fins on the two short materials are arranged side by side, and the connecting edges of the short material substrates are welded and fixed through a friction stir welding head; when two short materials are arranged in parallel, clamping and fixing force is only applied to substrates of the short materials. Compared with the prior art, the friction stir welding method has the following effects that the two short materials are welded and fixed through friction stir welding, meanwhile, only the base materials are clamped in the clamping process, acting force is not applied to the cooling fins, cooling fins on the obtained finished cooling fins can be kept good, and the overall quality is improved.
Owner:苏州市华盛源机电有限公司

Indoor rotary storage shelf capable of assembling and dismantling at will

The invention provides an indoor rotary storage shelf capable of assembling and dismantling at will. The shelf comprises upright columns, inserting grooves and positioning pins; six longitudinal columns are arranged, each of left and right sides is provided with three longitudinal columns, and the longitudinal columns are welded to the upright columns to form frameworks in the shapes of a Chinesecharacter 'ri'; three transverse columns are arranged, the transverse columns are welded to the upright columns to form frameworks in the shapes of a Chinese character 'ri', the frameworks welded by the longitudinal columns are connected with the front sides of the frameworks welded by the transverse columns and the upright columns through hinges, and each of left and right sides is provided witha connected framework; bottom feet are of square cylindrical structures, two bottom feet are arranged, and the bottom feet are welded to both left and right ends of the bottom side faces of the bottomend transverse columns; long plates are welded to the front side faces of the transverse columns, and rectangular holes are formed in the front side faces backwards. The storage shelf can be placed on the ground to used as a grounded type shelf, through the arrangement of inserting holes and the bottom feet, the height and storage area of the shelf are increased to meet using demands, using manners can be changed freely according to the needs of users, the conversion is simple, the operation is convenient, the cost is low, and the shelf can be popularized and used in batches.
Owner:赵彦强

Abrasive flow wiping fixture for stainless steel pipe

The invention discloses an abrasive flow wiping fixture for a stainless steel pipe. The fixture is characterized by comprising an upper guiding baffle, a lower guiding baffle, a bearing sleeve and a limiting sleeve, wherein the lower surface of the upper guiding baffle is closely combined with the upper end of the bearing sleeve; the upper surface of the lower guiding baffle is closely combined with the lower end of the bearing sleeve; the limiting sleeve is closely arranged in the bearing sleeve, and is parallel to the upper and lower guiding baffles; a plurality of insertion holes with the diameters equal to the external diameter of the stainless steel pipe are correspondingly formed in the upper and lower guiding baffles and the limiting sleeve. According to the abrasive flow wiping fixture, the pressure of an abrasive flow machine tool can be effectively dispersed and born, and the situation that the stainless steel pipe is bent and deformed by the pressure of the abrasive flow machine tool in a wiping process can be avoided; a plurality of stainless steel pipes can be simultaneously and fixed and wiped, so that the wiping efficiency and wiping effects are improved.
Owner:郝鹏飞

Passenger car frame structure

The invention discloses a passenger car frame structure, comprising a box-type longitudinal beam, a cross beam, a front independent suspension cross beam, a front independent suspension mounting bracket, a chassis connector and a rear leaf spring mounting bracket, wherein the number of the box-type longitudinal beams is two, a plurality of cross beams are vertically arranged between the two box-type longitudinal beams, and a front independent suspension cross beam is arranged between one end of the two box-type longitudinal beams. The utility model has the beneficial effects that the passengercar frame is formed into a system basic frame through full stamping and box structure, and has the structural characteristics of thin, uniform, light and strong, and can simultaneously meet the change requirements of different engines. According to the invention, A large number of pipeline insertion fixing holes and pipeline insertion fixing holes are respectively arranged in the cross beam, so as to ensure that the chassis of the bus and the pipes in the bus body are fixed reliably, the insertion is more convenient, and the line arrangement is more orderly and orderly, and the weight of thebox-type longitudinal beam and the whole cross beam is reduced by the large number of fixing holes, and the production and processing cost is reduced.
Owner:ANHUI ANKAI AUTOMOBILE

Improved metal printed composite household board

The invention provides a metal printed composite household board comprising a plurality of composite layers, and the high abrasive resistance of the composite household board can be ensured. Meanwhile, the improved metal printed composite household board specially adopts a metal substrate coated with a polyester primer, and also is provided with an interface treatment layer formed by a resin main body, a solvent, a pigment, a flatting agent, an anti-foaming agent, an accelerant and an abrasion-resistant agent in a special ratio. With the adoption of the interface treatment layer, a polyester printed layer has high adhesion force on the surface of a polyester material.
Owner:LIAONING CHAOSHUO TOMA TECH STEEL PLATE PRINTING

PTFE (polytetrafluoroethylene) sewing thread and preparation technique thereof

The invention belongs to the technical field of sewing thread structures and particularly relates to a PTFE (polytetrafluoroethylene) sewing thread and a preparation technique thereof. A PTFE thread is prepared first; a thread end marker, a plate clamping unit, a thread fixing groove, an intra-groove insert unit, an intra-groove fastening unit and a sliding plate unit are arranged on the PTFE thread; therefore, the PTFE sewing thread is utilized effectively, and finding after fixation of a thread end is not required. The preparation technique of the PTFE sewing thread is reasonable and effective; the thread end marker is fixedly mounted on the PTFE thread under high strength; the PTFE thread is convenient to remove for use and fixedly insert; the thread end marker is fixed stably on a tabletop; the tedious work of finding a thread end is omitted.
Owner:ZHEJIANG LUCKING ENVIRONMENTAL PROTECTION CO LTD

Pet house and assembling element thereof

The invention belongs to the technical field of pet use products, particularly relates to a pet house and an assembling element thereof, and solves the technical problems of unreasonable design and the like in the prior art. The pet house assembling element is horizontally arranged and comprises a wood board, wherein the upper surface of the wood board is provided with a sponge material layer, theperiphery of the upper surface of the wood board is provided with a plurality of through holes, and a connecting sleeve fixed at an orifice at the upper end of each through hole; the sponge materiallayer is provided with avoiding holes through which the connecting sleeves run through one by one, and a thin film layer is arranged between the wood board and the sponge material layer. The assembling element has the advantage that the production efficiency can be improved.
Owner:安吉凯锋科技股份有限公司

Novel nasal mask

The invention relates to the technical field of medical appliances, in particular to a novel nasal mask. The main body of the nasal mask is equipped with two through-holes for pipelines to pass through, the inner walls of the through-holes are equipped with clamp rings for limiting pipelines, each clamp ring includes clamp blocks arranged on the inner wall of the through-hole and a ring sleeve sleeved outside the pipeline, the clamp blocks and the ring sleeve are in fixed connection by inlaying, the clamp blocks are uniformly distributed on the inner wall of the through-hole with the through-hole center as the circle center, and the clamp blocks are clamped at a middle position on the outer wall of the ring sleeve, the ring sleeve is in fixed connection with the pipeline outer wall throughan adhesive layer on the inner wall, the ring sleeve is made of a memory sponge material, bands are composed of elastic straps and hook-and-loop fasteners at the ends. By disposing the through-holeson the traditional nasal mask, breathing tubes or stomach tubes can be conveniently inserted and fixed, and the mode is more stable and reliable than direct sticking of pipelines to the nose tip by anadhesive tape.
Owner:THE FIRST PEOPLES HOSPITAL OF CHANGZHOU

An electronic connector assembly equipment and its shell assembly device

ActiveCN111313208BGood stabilityImprove detection efficiency and detection qualityContact member assembly/disassemblyPhysicsElectronic component
The invention relates to the field of electronic components. The invention discloses a shell assembling device of an electronic connector. The shell assembling device comprises a shell feeding assembly, a shell transferring assembly, a shell detecting assembly and a shell and insulating base riveting assembly. The shell feeding assembly is used for shell feeding. The shell transferring assembly isused for transferring a shell to the shell detecting assembly, the shell detecting assembly is used for detecting the shell, the shell is transferred to the shell and insulating base riveting assembly through the shell transferring assembly after detection, and the shell and insulating base riveting assembly is used for the riveting connection of the shell, an insulating base and an assembly partof a contact pin. The device has the advantages that the detection efficiency and the detection quality are high, and the riveting quality of the shell and the insulating base is high.
Owner:深圳市昭合科技有限公司

An integrated rainwater recovery, storage and transfer system and method thereof

The invention discloses an integrated rainwater recycling-storage-dispatching system and method. The system comprises a filterer, a down-seep well, a water storage tank, an overflow water tank and a purifying device. A filtering frame body is arranged in the filterer, and comprises a rack body, a support fixing block and a first baffle. Water level detecting devices are arranged in both the water storage tank and the overflow water tank. A buffering device and a submerged pump are arranged at the bottom of the water storage tank. The construction method comprises the steps of S1, excavating a foundation pit, S2, conducting the construction of the water storage tank and the overflow water tank, S3, conducting the construction of the submerged pump and the buffering device, S4, establishing the down-seep well, S5, conducting the paving of a first down-seep pipe and a second down-seep pipe, S6, installing the filterer and the purifying device. The integrated rainwater recycling-storage-dispatching system and method have the advantages of being simple in structure, strong in practical application, and convenient to install. After the installation of the water storage tank, the other equipment are installed directly on the top surface of the water storage tank without any problem of elevation differences, therefore the trouble of pipe matching is saved, and the whole construction is made easier.
Owner:ZHEJIANG SHUANGLIN PLASTIC MACHINERY

Device for Improving Bearing Performance of Steel Arch Frame in Large-Section Tunnel with Expansion-Contraction Soil

InactiveCN104948207BMitigate adverse geological disastersReduce long-term deformationUnderground chambersTunnel liningSheet steelSelf-stabilization
The invention discloses a device for improving the bearing performance of a steel arch of a dilative soil large-section tunnel. The device comprises an arched support. High-strength round spiral steel bars and rigid supporting bases are arranged at large arch feet at the bottom of the arched support, each large arch foot comprises an upper-layer steel plate and a lower-layer steel plate connected with the upper-layer steel plate through five high-strength round spiral steel bars in a plum pile mode, and the rigid supporting bases penetrate through the high-strength spiral steel bars; five supporting base insertion grooves are formed in each lower-layer steel plate, and the supporting base insertion grooves are used for fixing the supporting bases so as to guarantee the overall stability of the steel arch. The device can relieve the settlement deformation of surrounding rock at the initial stage of excavation of the dilative soil tunnel, improve the self-stabilization capacity of the tunnel effectively and lastingly, form a multifunctional surrounding rock reinforcement area and guarantee the safety of tunnel constructors and protect equipment.
Owner:SHANDONG UNIV

A method of using a stainless steel tube abrasive flow wiping fixture

The invention discloses a method for using a stainless steel pipe abrasive flow wiping fixture, which comprises the following steps: (1) inserting several stainless steel pipes with the same length into the limit sleeve along the insertion hole of the limit sleeve to form a limit sleeve group; 2) Insert the lower end of the stainless steel tube of the limit set into the socket of the lower guide plate; (3) Place the bearing sleeve into the concave groove of the lower guide plate; (4) Insert the upper guide plate The socket of the plate is aligned with the upper end of the stainless steel tube of the limit set and inserted, and then the concave table slot of the upper baffle guide plate is clamped to the upper end of the bearing sleeve; (5) the clamp and the stainless steel tube are fixed into a whole Put them together between the upper and lower material cylinders of the abrasive flow machine tool, and start the machine tool to wipe the inner wall of the stainless steel tube in the fixture with abrasive flow. The invention can disperse the pressure of the abrasive flow machine tool, avoid the deformation of stainless steel pipes under pressure during the wiping process, and realize simultaneous fixed wiping of multiple stainless steel pipes, thereby improving the wiping efficiency and wiping effect.
Owner:郝鹏飞

Connecting device group and power supplier with the same

The invention provides a connector group and a power supply which is provided with the connector group. The power supply comprises a power supply body, a power input device and a first power supply output device which has a first power wire and a first connector, wherein, the first power wire is connected with the first surface of the first connector; the first connector is provided with a position limit part and a buckling part; the power supply also comprises a second power supply output device which is provided with a second power wire and a second connector, wherein, the second power wireis connected with the first surface of the second connector and the second connector is provided with an extension part and a first side wall, wherein, the position limit part and the buckling part are respectively jammed and matched with the first side wall and the extension part, thus selectively fixing the first connector and the second connector on a shared power socket, so as to lead the first power supply output device and the second power supply output device to be combined to supply power to the shared power socket. The connector group and the power supply of the invention have simplestructure, can be selectively matched and positioned in multi-direction, and is easy to be fixedly inserted to the power socket.
Owner:DELTA ELECTRONICS INC

A structure for marking ptfe sewing thread

The invention belongs to the technical field of sewing thread structures and particularly relates to a PTFE (polytetrafluoroethylene) sewing thread and a preparation technique thereof. A PTFE thread is prepared first; a thread end marker, a plate clamping unit, a thread fixing groove, an intra-groove insert unit, an intra-groove fastening unit and a sliding plate unit are arranged on the PTFE thread; therefore, the PTFE sewing thread is utilized effectively, and finding after fixation of a thread end is not required. The preparation technique of the PTFE sewing thread is reasonable and effective; the thread end marker is fixedly mounted on the PTFE thread under high strength; the PTFE thread is convenient to remove for use and fixedly insert; the thread end marker is fixed stably on a tabletop; the tedious work of finding a thread end is omitted.
Owner:ZHEJIANG LUCKING ENVIRONMENTAL PROTECTION CO LTD

Novel clinical first-aid equipment for department of cardiology

The invention relates to the technical field of first-aid equipment, in particular to novel clinical first-aid equipment for the department of cardiology. The equipment comprises a first-aid equipment main body, the first-aid equipment main body comprises a first-aid equipment main body, and equipment placement grooves are formed in the two sides of the top of the first-aid equipment main body; a defibrillator is placed in the equipment placement groove; a defibrillator is installed in the rescue equipment body, a handle is installed at the top of the defibrillator, a locking base is connected to the interior of the equipment containing groove through a locking mechanism, a first-aid direction prompt board is installed at the top of the handle and arranged in an inclined mode, and equipment fixing clamping blocks are movably connected to the two sides of the top of the rescue equipment body through rotating shafts. The stability is improved, so that the problems that when a patient needs to be first-aid, the patient needs to be carried and moved, and in the carrying process, the defibrillator is likely to be loosened and disengaged from a placement notch, and the defibrillator falls off and is damaged are effectively solved.
Owner:关金玲

Connecting device group and power supplier with the same

The invention provides a connector group and a power supply which is provided with the connector group. The power supply comprises a power supply body, a power input device and a first power supply output device which has a first power wire and a first connector, wherein, the first power wire is connected with the first surface of the first connector; the first connector is provided with a position limit part and a buckling part; the power supply also comprises a second power supply output device which is provided with a second power wire and a second connector, wherein, the second power wire is connected with the first surface of the second connector and the second connector is provided with an extension part and a first side wall, wherein, the position limit part and the buckling part are respectively jammed and matched with the first side wall and the extension part, thus selectively fixing the first connector and the second connector on a shared power socket, so as to lead the first power supply output device and the second power supply output device to be combined to supply power to the shared power socket. The connector group and the power supply of the invention have simple structure, can be selectively matched and positioned in multi-direction, and is easy to be fixedly inserted to the power socket.
Owner:DELTA ELECTRONICS INC

Split paper drawing roller bearing seat

The invention relates to a split paper drawing roller bearing seat. The bearing seat comprises a bearing main seat (1) and a bearing sub-seat (2) which are connected through bolts. The bearing main seat (1) is welded on a mounting bottom plate, and a bearing (20) is mounted in the bearing sub-seat (2). Multiple bolt holes (12) are formed in the bearing main seat (1). Bolt through holes (22) matched with the bolt holes (12) in position and number are formed in the bearing sub-seat (2). Compared with the prior art, the split paper drawing roller bearing seat has the advantages of convenience indisassembly, stable structure and the like.
Owner:上海东冠纸业有限公司
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