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30results about How to "Effectively removed" patented technology

Dry-hole pressure relief valve and hydraulic fracturing crustal stress testing device

The invention discloses a dry-hole pressure relief valve and a hydraulic fracturing crustal stress testing device, and relates to the technical field of rock mass engineering testing. A valve core of the dry-hole pressure relief valve is inserted in a valve cavity from the insertion end of a valve body, and one end of the valve core extends out of the insertion end; a plurality of pressure relief holes are formed in the end, away from the insertion end, of the valve body, the valve core is provided with a blocking part which can block the valve cavity, and the insertion end of the valve body is provided with a limit nut for limiting the length of the part, extending out of the valve body, of the valve core; the part, located between the blocking part and the limit nut, of the valve core is sleeved with a load-bearing spring; the dry-hole pressure relief valve is simple in structure and convenient to operate, and can effectively relieve pressure in a packer. A high-pressure pump of the hydraulic fracturing crustal stress testing device is communicated with the top end of a drilling hole, the bottom end of the drilling hole is communicated with the dry-hole pressure relief value, the end, extending out of the insertion end, of the valve core is communicated with a switching valve, and the switching valve is communicated with the packer. Through the adoption of the hydraulic fracturing crustal stress testing device, crustal stress tests can be conducted under the conditions of deep drilling holes and dry holes by using a hydraulic fracturing method, and the tests are stable.
Owner:INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI

Dust and debris extraction apparatus for power tool

The invention relates to a power tool such as a router which is provided to perform an operation on a work piece. The tool includes dust extraction apparatus to allow dust and debris to be removed from the location at which the work is performed and part of the extraction apparatus is movable between storage and in-use positions. When said part is moved to a storage position, an alternative dust extraction passage may be fitted in to the port or aperture. Typically, the part which is movable can be telescopically movable or alternatively, can be provided of a flexible member so as to be moved between extended and retracted positions.
Owner:GMCA PTY LIMITED

Compressed natural gas transport ship

The invention provides a compressed natural gas transport ship which comprises a hull, a fixing device and multiple gas bottles. The hull comprises a ship bottom and a main deck. At least one cargo cabin is formed between the ship bottom and the main deck of the hull. The gas bottles are installed in the cargo cabin in a vertical state. The upper ends of the gas bottles exceed the main deck of the hull. The fixing device comprises a first fixing assembly and a second fixing assembly. The first fixing assembly is arranged between the gas bottles and the ship bottom so as to fixedly support the bottoms of the gas bottles to the ship bottom. The second fixing assembly is arranged at the height position of the main deck of the hull and fixedly connected with the main deck. The second fixing assembly is connected with the gas bottles, so that the gas bottles and the main deck are relatively fixed. By the adoption of the compressed natural gas transport ship, a feasible CNG transport ship mode is provided, the gas bottles and the hull are reliably fixed, and the safety of the CNG transport ship in the transport process is guaranteed.
Owner:SHIJIAZHUANG ENRIC GAS EQUIP +3

Electric automobile tire dismounting detection equipment capable of realizing omnibearing fixing and clamping

The invention relates to electric automobile tire dismounting detection equipment capable of realizing omnibearing fixing and clamping. The equipment comprises a support bottom plate, two clamping devices, a clamping telescopic push rod and a clamping push rod connecting plate, wherein the two clamping devices are symmetrically distributed at the left side of the support bottom plate; the right end of each clamping device is connected with the top part of the clamping telescopic push rod; the clamping telescopic push rod is arranged on the top part of the left end of the support bottom plate through the clamping push rod connecting plate; the clamping device comprises a clamping support frame, a clamping wheel, two clamping push rods, a clamping support plate, a clamping side claw, a sideclaw electric slide rail, two clamp groove branch chains, a clamping electric slide rail, two clamping mechanisms, a side claw push rod, two clamping support push rods and a clamping telescopic plate.Difficult problems that during the dismounting detection on the electric automobile tire in the prior art, the tire cannot be effectively fixed; during the dismounting of the tire, screw threads on ascrew bolt on an electric automobile can be easily damaged; the tire needs to be manually taken down from the electric automobile and the like can be solved.
Owner:黄乐基

Dual-purpose fixing mechanism for cutting arc-shaped board

The invention discloses a dual-purpose fixing mechanism for cutting an arc-shaped board. The problems that an existing operation tabletop is not suitable for cutting the arc-shaped board and the phenomenon that a cut finished product is unqualified in the cutting process is likely to happen are solved. The dual-purpose fixing mechanism comprises an operation table (1) with an operation platform and is characterized in that the operation platform is provided with two installation openings (2), the direction of a straight line formed between the two installation openings (2) is the same as the cutting moving direction of the arc-shaped board, and each installation opening (2) is internally provided with an angle adjusting component (3); the two angle adjusting components (3) are symmetrically arranged, and each angle adjusting component (3) comprises a push cylinder (31), a fixed rod (32) with the bottom end hinged to the push cylinder (31) and a movable rod (33) with the bottom end hinged to the top end of the fixed rod (32); and the top ends of push-pull shafts of the push cylinders (31) are movably connected with the movable rods (33). The dual-purpose fixing mechanism has the beneficial effects of being simple in structure, easy and convenient to operate and the like.
Owner:CHENGDU ZHENZHONG ELECTRIC

Process for taking down rusted broken stud screw with screw glue

The invention discloses a process for taking down a rusted broken-stud screw with screw glue. The process comprises the following specific steps: punching a positioning hole for a screw rod of the broken-stud screw by using a leading punch; drilling the screw rod of the broken-stud screw from the position of the positioning hole by using a drill bit; carrying out repeated surfacing welding from inside of the hole to outside of the hole by using a welding rod until a surfacing-welded body formed by surfacing welding is exposed out of a mechanical face by over 5mm; welding a nut on the surfacing-welded body; spraying water to the screw rod of the broken-stud screw; rotating the nut by using a spanner so as to take down the broken-stud screw. The process has the advantages of effectively taking out the broken-stud screw and the like.
Owner:安徽经天金属表面处理科技有限公司

Tool used for replacing side roll resistance torsion bar bushing block of bogie and replacement method

The invention provides a tool used for replacing a side roll resistance torsion bar bushing block of a bogie and a replacement method. The tool comprises a matrix, wherein the matrix is provided with a mounting hole used to be sheathed to a side roll resistance torsion bar bushing block in a penetrating mode along the horizontal direction; the surface of the matrix is provided with a long trough hole; the length direction of the long through hole is parallel with the center shaft of the mounting hole; the bottom of the long through hole is communicated with the mounting hole; the inside of the long through hole is fixedly provided with two side top blocks; in the long through hole, a main top block is arranged between the two side top blocks; on the matrix, a screw is in spiro union to one side of the main top block, which is opposite to a supporting convex part; and the tail end of the screw is supported on the main top block. According to the tool disclosed by the invention, the surface of the end shaft of the side roll resistance torsion bar of the bogie is free from being damaged when the side roll resistance torsion bar bushing block of the bogie is replaced, the side roll resistance torsion bar of the bogie can be reused after the bushing block is replaced, and the vehicle overhauling cost is lowered.
Owner:CRRC TANGSHAN CO LTD

Anesthetic waste gas extraction device with filtering structure for anesthesia department

The invention relates to an anesthetic waste gas extraction device with a filtering structure for an anesthesia department. The anesthetic waste gas extraction device comprises a mounting plate, a hydraulic cylinder and a fixing block; a positioning bolt is arranged at the top end of the mounting plate, a waste gas bottle is arranged on one side of the mounting plate, a bolt disc is arranged at the top end of the waste gas bottle, and an inner bottle is arranged at the bottom end of the interior of the bolt disc; a sealing plate is arranged at the bottom end of the inner bottle, a sealing ringis arranged at the bottom end of the waste gas bottle, an exhaust pipe is arranged at the bottom end of the sealing ring, and clamping groove bolt discs are arranged on the two sides of the exhaust pipe. The anesthetic waste gas extraction device has the beneficial effects that the lifting frames can be pushed by power of the hydraulic cylinder, the piston plate between the lifting frames is driven to do reciprocating lifting motion between the filter bottles, waste gas in the exhaust pipe is effectively adsorbed to pass through the purification filter screens, impurities in the waste gas canbe filtered in the purification filter screens, the flowability of the reciprocating adsorption gas can be improved by power of the hydraulic cylinder, and the waste gas treatment effect is improved.
Owner:邢相记

Graphite double-covering production device

The invention relates to a graphite double-covering production device. The device comprises an arranging wall body and a graphite arranging rotating cylinder, a first lining paper rotating cylinder, asecond lining paper rotating cylinder, a first compressing rotating cylinder set, a first compressing cutting rotating cylinder set, a first waste collecting rotating cylinder, a second compressing rotating cylinder set, a first adhering rotating cylinder, a second waste collecting rotating cylinder, a third lining paper rotating cylinder, a third compressing rotating cylinder set, a third wastecollecting rotating cylinder, a fourth compressing rotating cylinder set, a glue separating rotating cylinder, a second compressing cutting rotating cylinder set, a copper foil rotating cylinder, a fourth waste collecting rotating cylinder, a fifth compressing rotating cylinder set, a third compressing cutting rotating cylinder set, a mylar rotating cylinder, a fifth waste collecting rotating cylinder, a sixth waste collecting rotating cylinder, a fourth compressing cutting rotating cylinder set, a glue covering rotating cylinder, a seventh waste collecting rotating cylinder, a third waste adhering rotating cylinder, a fourth waste adhering rotating cylinder, a sixth compressing rotating cylinder set, a covering rotating cylinder, a seventh compressing rotating cylinder set and a receivingrotating cylinder which are arranged on the arranging wall body. According to the device, in the machining process of a graphite material belt, the phenomenons that the graphite material belt is broken and the graphite material belt is layered when being cut can be prevented.
Owner:路德通电子设备(北京)有限公司

Tool used for replacing side roll resistance torsion bar bushing block of bogie and replacement method

The invention provides a tool used for replacing a side roll resistance torsion bar bushing block of a bogie and a replacement method. The tool comprises a matrix, wherein the matrix is provided with a mounting hole used to be sheathed to a side roll resistance torsion bar bushing block in a penetrating mode along the horizontal direction; the surface of the matrix is provided with a long trough hole; the length direction of the long through hole is parallel with the center shaft of the mounting hole; the bottom of the long through hole is communicated with the mounting hole; the inside of the long through hole is fixedly provided with two side top blocks; in the long through hole, a main top block is arranged between the two side top blocks; on the matrix, a screw is in spiro union to one side of the main top block, which is opposite to a supporting convex part; and the tail end of the screw is supported on the main top block. According to the tool disclosed by the invention, the surface of the end shaft of the side roll resistance torsion bar of the bogie is free from being damaged when the side roll resistance torsion bar bushing block of the bogie is replaced, the side roll resistance torsion bar of the bogie can be reused after the bushing block is replaced, and the vehicle overhauling cost is lowered.
Owner:CRRC TANGSHAN CO LTD

Circulating bucket lifting discharging device of roller press

The invention belongs to the technical field of cement production, and particularly relates to a circulating bucket lifting discharging device of a roller press. The effective discharging effect is achieved through the mode that a discharging rack, a belt pulley, a conveying belt, a U-shaped frame, an oblique baffle, an electromagnet unit, a mounting beam, a disconnecting conductive unit, a shifting power supply unit and a connecting conductor are arranged at a circulating bucket lifting discharging opening; and the circulating bucket lifting discharging device has the advantages that during belt conveying, a blocking and leakage-proof structure is reasonable and effective, the oblique baffle is rapid and convenient to mount and dismount, the mounting stability is high, in the conveying process, magnetic attraction is fixed, power is disconnected when not conveying, the oblique baffle is convenient to take down, during overall using, the power is saved, and flexibility is achieved.
Owner:福建福清万年青水泥有限公司

Cooking machine, executing device and actuator replacing mechanism

PendingCN109924855AEasy to useWhen using, according to the convenience of useCooking vesselsManipulatorActuatorControl theory
The invention relates to a cooking machine, an executing device and an actuator replacing mechanism, wherein the cooking machine comprises the executing device and an actuator; the executing device comprises the actuator replacing mechanism and a mechanical arm mechanism; and the actuator replacing mechanism comprises a mounting assembly and a retainer assembly, and one or more actuators are arranged to be fixed on the fixing pieces of different mounting assemblies according to use requirements. Meanwhile, at least two placing grooves which are arranged at intervals are arranged on the retainer assembly, and the fixing pieces are correspondingly arranged in the placing grooves, so that supporting pieces are positioned on the retainer assembly, and the actuators are effectively retained onthe retainer assembly. In the use process, the actuator corresponding to the mounting assembly on the placing groove can be selected according to the cooking requirement, the mechanical arm mechanismmoves to the mounting assembly corresponding to the selected actuator, and the mechanical arm mechanism is matched with the mounting assembly, so that the mounting assembly can be effectively taken down from the retainer assembly, the use of the actuator is facilitated, and the cooking efficiency is effectively improved.
Owner:广州陈扬枝科技有限责任公司

Block movement and construction method used for inclined building berth and movement device thereof

The invention provides a block movement and construction method used for an inclined building berth and a movement device thereof. The block movement device comprises a support mechanism, a rolling mechanism, pulley assemblies and a traction mechanism. The traction mechanism is connected with the pulley assemblies through a steel wire rope. The block movement and construction method used for the inclined building berth comprises following steps: arranging the support mechanism and a movement mechanism between supports below the block; arranging the traction mechanism at the slope crest of the inclined building berth and using the steel wire rope to connect the traction mechanism with the pulley assemblies; starting a windlass to tighten the steel wire rope; starting a jacking mechanism to jack up the block and detaching the supports below the block; starting the windlass to loosen the steel wire rope such that the block can downwardly slide along the inclined building berth through self weight till the block is in place; and subsequently erecting a whole hull. The block movement and construction method used for the inclined building berth and the movement device thereof have following beneficial effects: the block movement device is capable of effectively moving the block from the berth; and the block movement and construction method for the inclined building berth helps effectively shorten the occupation period for the berth and increases production efficiency of the berth.
Owner:SHANGHAI SHIPYARD

Extraction agent for preparing potassium nitrate with nitric acid-potassium chloride extraction method

The invention discloses an extraction agent for preparing potassium nitrate with a nitric acid-potassium chloride extraction method. The extraction agent is prepared from isoamyl alcohol, n-butyl alcohol, tri-n-octylaminetri-octyl tertiary amine, n-caprylic alcohol according to a volume ratio of 1 to (0.1 to 0.5) to (3 to 10) to (1.3 to 3). The extractant provided by the invention has a good extraction effect and high selectivity for hydrochloric acid in a nitric acid-potassium chloride reaction system, the hydrochloric acid can be extracted without while not extracting nitric acid, the nitricacid serving as a raw material is saved, the purity of the nitric acid serving as a by-product is improved; the nitric acid prepared by back extraction can be directly taken as a product for selling.
Owner:安徽胜达化工科技有限公司

Reaction kettle for preparing nano calcium carbonate

The invention discloses a reaction kettle for preparing nano calcium carbonate. The reaction kettle includes a cylinder body and a cylinder cover, the cylinder body is covered with the cylinder cover, the cylinder cover is provided with a carbon dioxide gas inlet and a motor, the cylinder is externally provided with a hollow clamping sleeve, the clamping sleeve covers the surface of the outer wall of the cylinder body besides the bottom of the cylinder body, the upper portion of the clamping sleeve is provided with a cooling medium inlet pipe, he lower portion of the clamping sleeve is provided with a cooling medium outlet pipe, the inner wall of the clamping sleeve is provided with a first baffle plate and a second baffle plate, the first baffle plate and the second baffle plate are arranged on two inner walls in the clamping sleeve respectively and arranged in a staggered mode, and pores are formed between the inner wall of the clamping sleeve and the first baffle plate and between the inner wall of the clamping sleeve and the second baffle plate. According to the reaction kettle, by further improving the clamping sleeve, reaction heat can be effectively removed, the use of cooling mediums is reduced, and huge waste of the cooling mediums is avoided.
Owner:湖南蓝伯化工有限责任公司

Reactor for preparing nano calcium carbonate

The invention discloses a reaction kettle for preparing nano calcium carbonate. The reaction kettle includes a cylinder body and a cylinder cover, the cylinder body is covered with the cylinder cover, the cylinder cover is provided with a carbon dioxide gas inlet and a motor, the cylinder is externally provided with a hollow clamping sleeve, the clamping sleeve covers the surface of the outer wall of the cylinder body besides the bottom of the cylinder body, the upper portion of the clamping sleeve is provided with a cooling medium inlet pipe, he lower portion of the clamping sleeve is provided with a cooling medium outlet pipe, the inner wall of the clamping sleeve is provided with a first baffle plate and a second baffle plate, the first baffle plate and the second baffle plate are arranged on two inner walls in the clamping sleeve respectively and arranged in a staggered mode, and pores are formed between the inner wall of the clamping sleeve and the first baffle plate and between the inner wall of the clamping sleeve and the second baffle plate. According to the reaction kettle, by further improving the clamping sleeve, reaction heat can be effectively removed, the use of cooling mediums is reduced, and huge waste of the cooling mediums is avoided.
Owner:湖南蓝伯化工有限责任公司

Portable washing machine based on environmental-friendly press cloth fibers

ActiveCN110665291AEasy to useEasy to hook and pull outFilter regenerationFiberProcess engineering
The invention discloses a portable washing machine based on environmental-friendly press cloth fibers. The portable washing machine includes an outer cylinder body, the outer cylinder body is internally provided with an inner cylinder, the outer surface of the inner cylinder is uniformly provided with a plurality of changing and washing holes in a penetrating mode, one end part of the outer cylinder body is provided with an end cover through bolts, the inner end face of the end cover is rotatably provided with an installation block, the end face, located inside the inner cylinder, of the installation block is provided with a plurality of pull rods in a surrounding mode, the side surfaces, corresponding to the inner cylinder, of the pull rods are connected with a plurality of triangular cushion strips in a glue joint mode, and the tops of support columns are provided with a hanging mechanism. According to the portable washing machine, through hanging of items by a hanging rod, storage of a hanging rod body, pull-out of cloth by the pull rods and the triangular cushion strips, stable movement of the end cover driven by a handle rod, the whole washing machine can quickly sun-cure andquickly take out the cleaning items during using, convenience of the washing machine is increased, pretreatment of the cloth by a pretreatment mechanism shortens washing time of the inner cylinder, and thus cleaning is more thorough.
Owner:安徽巨创化纤科技有限公司

A portable washing machine for environmental protection filter cloth fiber

ActiveCN110665291BEasy to useEasy to hook and pull outFilter regenerationFiberMechanical engineering
The invention discloses a portable washing machine based on environmental-friendly press cloth fibers. The portable washing machine includes an outer cylinder body, the outer cylinder body is internally provided with an inner cylinder, the outer surface of the inner cylinder is uniformly provided with a plurality of changing and washing holes in a penetrating mode, one end part of the outer cylinder body is provided with an end cover through bolts, the inner end face of the end cover is rotatably provided with an installation block, the end face, located inside the inner cylinder, of the installation block is provided with a plurality of pull rods in a surrounding mode, the side surfaces, corresponding to the inner cylinder, of the pull rods are connected with a plurality of triangular cushion strips in a glue joint mode, and the tops of support columns are provided with a hanging mechanism. According to the portable washing machine, through hanging of items by a hanging rod, storage of a hanging rod body, pull-out of cloth by the pull rods and the triangular cushion strips, stable movement of the end cover driven by a handle rod, the whole washing machine can quickly sun-cure andquickly take out the cleaning items during using, convenience of the washing machine is increased, pretreatment of the cloth by a pretreatment mechanism shortens washing time of the inner cylinder, and thus cleaning is more thorough.
Owner:安徽巨创化纤科技有限公司

Control Method of Fixing Mechanism for Dual-purpose Curved Plate Cutting

The present invention discloses a control method of a fixed mechanism for dual-purpose curved plate cutting. The problems that the traditional operating desktop is not applicable to curved plate cutting and finished products cut on the traditional operating desktop are liable to be qualified at cutting are solved. The control method provided by the invention comprises: (1) the curved plate of a power distribution cabinet is disposed on an operating desk body arranged between two angle regulation elements; (2) pushing cylinders on the angle regulation elements are started to make the top of each movable lever close to the curved plate of the power distribution cabinet, the radians formed at the contact position of the curved plate of the power distribution cabinet and the operating desk body and between the tops of the two movable levers are in accordance with the curved plate of the power distribution cabinet; (3) a compacting apparatus is pushed downward to fix the curved plate of the power distribution cabinet between the compacting apparatus and the angle regulation elements; (4) the angle regulation elements include the pushing cylinders, dead levers which have bottom ends hinged to the bodies of the pushing cylinders, and movable levers which have bottom ends hinged at the tops of the dead levers; and (5) the tops of the push-pull shafts of the pushing cylinders are movably connected with the movable levers. According to the invention, the control method of a fixed mechanism for dual-purpose curved plate cutting has the advantages of simple structure and easy operation, etc.
Owner:江苏益圆居品制造有限公司

Metalworking cutting machine tool facilitating position adjustment

The invention discloses a metalworking cutting machine tool facilitating position adjustment, and particularly relates to the technical field of metalworking. The metalworking cutting machine tool comprises supporting legs and a workbench, wherein each of the four corners of the bottom end of the workbench is separately and fixedly connected with the corresponding supporting leg; the top end of the workbench is provided with a top frame; one side of the top frame is fixedly connected with a driving motor; and the output end of the driving motor penetrates through one side of the top frame and extends into the top frame to be fixedly connected with a rotating shaft. Through the arrangement of a water pumping pipe, a water pump, a water tank, a water outlet pipe and a nozzle, when the device is used for cutting a metal plate, the driving motor is started to drive the rotating shaft on one side to rotate, and at the same time, an external cutter is driven to rotate to cut the metal plate at the bottom end. Then the water pump is started, water in the water tank is pumped out through the water pumping pipe and then guided out through the water outlet pipe. Finally, the water is sprayed out through the nozzle to cool the high-temperature cutter. Therefore, the cutter is prevented from being damaged due to overhigh temperature, and the cutter can be quickly cooled.
Owner:陈绣定

Oil Pressure Control Device

An oil pressure control device controls the supply pressure of oil supplied to an oil pressure chamber of a friction element having a first engagement board 6a and a second engagement board 6b engaged with or disengaged from each other between a non-engagement state and a non-sliding engagement state via a sliding engagement state. The oil pressure control device includes: an electromagnetic valve that controls the supply pressure using a spool 44 which reciprocates according to an energizing amount; and a control part 52 that defines a first oscillatory wave part in which the energizing amount is controlled by making a first waveform with a first frequency to superimpose on a second waveform with a second frequency higher than the first frequency during a first period while the sliding engagement state and an instruction value of the supply pressure are kept constant.
Owner:DENSO CORP

Carbon monoxide conversion process

The invention belongs to the technical field of chemical engineering, and particularly relates to a carbon monoxide conversion process. The process comprises the steps: (1) purification of feed gas; (2) water vaporization; (3) gas-steam mixing; (4) shift reaction; and (5) gas-liquid separation. According to the carbon monoxide conversion process disclosed by the invention, a desulfurization, dechlorination and purification process matched with the conversion process is adopted, so that the source range of feed gas is widened; an isothermal shift reaction furnace can rapidly and effectively remove reaction heat, and compared with a traditional reaction furnace, the isothermal shift reaction furnace has a good protection effect on a copper-based shift catalyst used in the furnace, widens theuse conditions of the catalyst, and has the inlet temperature of 180-280 DEG C, is suitable for synthesis gas, coke-oven gas, blast furnace gas, self-matched gas and laboratory coal gasification product gas with the CO volume content of 1%-30%, and has the carbon monoxide conversion rate reaching 90% or above.
Owner:SINOPEC NANJING RES INST OF CHEM IND CO LTD +1

Shock-absorbing washer for automobile suspension system

The invention discloses a shock-absorbing washer for an automobile suspension system. The shock-absorbing washer comprises an upper supporting plate and a lower supporting plate. Two grooves are symmetrically formed in both sides of the lower end surface of the upper supporting plate, and the bottoms of the grooves are filled with buffer cotton. Vertical metal guard plates are symmetrically arranged on both sides of the upper end surface of the lower supporting plate, and the upper ends of the metal guard plates are inserted into the grooves. A buffer layer is arranged between the upper supporting plate and the lower supporting plate, and the buffer layer is located on the inner sides of the metal guard plates on both sides of the upper end surface of the lower supporting plate. The bufferlayer is provided with a first rubber shock-absorbing layer, a metal plate and a second rubber shock-absorbing layer in sequence from top to bottom. The first rubber shock-absorbing layer is internally provided with a plurality of horizontally arranged strip-shaped airbags, and a plurality of vertically arranged shock-absorbing springs are arranged in the second rubber shock-absorbing layer. Theshock-absorbing washer is simple and novel in structure, and has a good shock absorption effect.
Owner:ANHUI WEIWEI RUBBER PARTS GRP
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