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48results about How to "Add connection point" patented technology
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Decorative plate connection structure
InactiveCN1924250AImprove securityNo risk of loosening and falling offCovering/liningsEngineeringRivet
Owner:HUNTER DOUGLAS ARCHITECTURAL PROD CHINA LTD
Combined die plate
InactiveCN106079043AImprove integrityAdd connection pointMouldsMould fastening meansEngineeringFlange
The invention belongs to the technical field of building prefabricated parts, and discloses a combined die plate for molding a prefabricated part. The combined die plate at least comprises a first flange die plate body and a second flange die plate body; the first flange die plate body is located on the upper portion of the second flange die plate body, the first flange die plate body and the second flange die plate body are connected into a whole through a connecting and fixing device, and the connecting and fixing device is located on the same side of the first flange die plate body and the second flange die plate body. According to the combined die plate, a die is subjected to function or specification splitting and split into multiple die plate bodies such as the first flange die plate body and the second die plate body, the die plate bodies are combined into a combined flange die plate, and the combined die plate is fixed to a bottom die through the connecting and fixing device; accordingly, not only is the die conveniently managed, but also one die can achieve multiple purposes, the repeating utilization rate of the die is increased, and the apportioned cost of the die is reduced.
Owner:CHINA MINGSHENG DRAWIN TECH INVESTMENT CO LTD
Method for making paper
ActiveCN103952940AStrong shear resistanceGood bindingNon-fibrous pulp additionNatural cellulose pulp/paperPhysical strengthChemistry
The invention discloses a method for making paper. The method comprises the following steps: preparing a sizing agent of certain concentration, adding ultra-high molecular weight cationic polyacrylamide of which the molecular weight is 8000K-30000KDa into the sizing agent, uniformly mixing to form a first mixture characterized in that positive charges covering the sizing agent, adding packing of certain concentration and with negative charges into the first mixture, uniformly mixing to form a second mixture characterized in that the sizing agent, the ultra-high molecular weight cationic polyacrylamide and the packing are wrapped with one another, adding a packing flocculating agent of which the molecular weight is 3000K-10000KDa into the second mixture so as to form a third mixture, dispensing pulp by using the third mixture and making into paper. In such a mode, the method improves the physical strength indexes such as internal aggregation and fracture resistance of the prepared paper.
Owner:GOLD EAST PAPER JIANGSU
Motorcycle secondary gulp valve bracket mounting structure
InactiveCN101704391AAdd connection pointFirmly connectedCycle equipmentsPropulsion unit gas exhaustVehicle frame
The invention discloses a motorcycle secondary gulp valve bracket mounting structure, comprising a bracket (1) and a frame front main pipe (2), wherein the bracket (1) is in a rectangular plate structure, one long edge of the bracket (1) is welded with the frame front main pipe (2); a lapping block (3) is formed on the bracket (1) through stamping; the lapping block (3) is in a rectangular shape; one long edge of the lapping block (3) is connected with the top side of the bracket (1); gaps are left between the other three edges of the lapping block (3) and the top side of the bracket (1); and the other long edge of the lapping block (3) is welded on the frame front main pipe (2). In the invention, the lapping block is stamped on the bracket and then is welded on the frame front main pipe, thus not only strengthening the firmness of the connection between the bracket and the frame front main pipe, but also greatly increasing the strength of the structure and effectively preventing the deformation of secondary gulp bracket.
Owner:力帆科技(集团)股份有限公司
Evaporation device and machining method for to-be-evaporated base plate
InactiveCN106048536APrevent saggingCause damageVacuum evaporation coatingSputtering coatingEvaporationEngineering
The invention provides a to-be-evaporated base plate, an evaporation device and a machining method for the to-be-evaporated base plate. The to-be-evaporated base plate is provided with a first positioning mechanism detachably connected with the to-be-evaporated base plate. The first positioning mechanism is matched with a second positioning mechanism and can be connected and disconnected with the second positioning mechanism. In the evaporation process, the second positioning mechanism and the evaporation device are relatively fixed. The evaporation device comprises the second positioning mechanism arranged in an evaporation cavity, the second positioning mechanism corresponds to the first positioning mechanism on the to-be-evaporated base plate and is connected with the first positioning mechanism during evaporation, and accordingly the distance between the area provided with the first positioning mechanism and a base plate supporting base table is smaller than the second set value. The machining method for the evaporated base plate is used for machining the to-be-evaporated base plate provided by any embodiment. By means of the evaporation device and the machining method for the to-be-evaporated base plate, the problem of drooping of the to-be-evaporated base plate can be effectively solved.
Owner:BOE TECH GRP CO LTD +1
Common-bottom structure storage tank body assembling and welding process and overturning tool
ActiveCN110961820ASimple and reliable flippingSimple and reliable flipping processNuclear energy generationWelding/cutting auxillary devicesClassical mechanicsStructural engineering
The invention provides a common-bottom structure storage tank body assembling and welding process which comprises the following steps that (1) a front bottom assembling unit and a rear bottom assembling unit are welded; (2) the common bottom of the common bottom storage tank is overturned through an overturning tool and the upper frame is fixed to the tail of the equipment bed; (3) an upper box cylinder section is welded on the upper convex side of the common bottom; (4) the lower box cylinder section is mounted to the equipment bed tail, then the common-bottom transition ring and the lower box cylinder section are welded, the rear bottom assembly is mounted to the equipment bed tail and then the rear bottom assembly and the lower box cylinder section are welded to form a storage box partsection; and (5) the storage box section is lifted to turn the course, the rear bottom assembly end of the storage box section is connected with the equipment bed head, the upper box cylinder sectionis erected to the tail of the equipment bed, the upper box cylinder section and the remaining cylinder sections are assembled and welded and then the front bottom assembly is assembled to the tail ofthe bed and the front bottom assembly is welded with the remaining cylinder sections. The overturning process of the storage tank of the common-bottom structure storage tank body assembling and welding process is simple and reliable and overturning of a large-diameter tank bottom structure is realized.
Owner:TIANJIN AEROSPACE CHANGZHENG ROCKET MFGCO
High-altitude component hoisting construction method
PendingCN112502313AAdd connection pointFirmly connectedWallsBuilding material handlingArchitectural engineeringCivil engineering
The invention provides a high-altitude component hoisting construction method. The method comprises the following steps that steel structure supporting rib plates and steel structure stand columns areinstalled and connected at the ground position; waterproof resin plates are installed on the two sides of the steel structure supporting rib plates to form steel components; two adjacent steel components are fixedly connected together through integral hoisting; and concrete is poured to reinforce connection of the steel components. In an actual implementation process, the steel components are assembled on the ground to be integrally hoisted, the construction process is effectively accelerated, long-time high-altitude operation of personnel is avoided, the construction safety is improved, meanwhile, after the concrete is poured, a wall body is thickened through the concrete and the waterproof resin plates, the bearing capacity of the steel structure wall body is effectively improved, the connecting points of the steel components can be effectively reinforced after the concrete is solidified, and the steel components are connected more firmly.
Owner:福建金启点实业有限公司
High-stability surveying and mapping support for geological surveying and mapping
PendingCN114198620AGuaranteed stabilityEasy to assembleStands/trestlesMining engineeringSurvey instrument
The high-stability surveying and mapping support for geological surveying and mapping comprises an electric lifting rod, a threaded sleeve, a square connecting block and a fixing plate, and the threaded sleeve is installed on the outer surface of the electric lifting rod; a square connecting block is installed on the outer surface of the threaded sleeve, and two sets of symmetrically-arranged fixing plates are installed on the front face, the back face and the outer walls of the two sides of the square connecting block; round rods are installed on the outer walls of one sides of the four sets of fixing plates in a penetrating mode, and movable sleeves are installed on the outer surfaces of the round rods. The four sets of drill rods can drill into the deep position of the ground, so that positioning placement is facilitated, the placement stability of the equipment is improved, meanwhile, the equipment can be assembled with surveying instruments of different sizes, the equipment and the surveying instruments are fastened and assembled through clamping plates, and when the surveying instruments are used, the shielding shed can be stretched to shield wind and rain for the surveying instruments; in the equipment, the comprehensive plate and the electric lifting rod are connected in a multi-point manner, and connecting points are increased, so that the assembly firmness of the comprehensive plate and the electric lifting rod is ensured.
Owner:方宇勘测有限公司
Lower vehicle body rear frame assembly
PendingCN110962942AAdd connection pointImprove mechanical performanceSuperstructure subunitsStructural engineeringControl theory
The invention discloses a lower vehicle body rear frame assembly, which comprises a wheel cover supporting plate, a rear girder partition plate and a rear girder assembly. The rear girder partition plate comprises a first horizontal wall and two first vertical walls. The two first vertical walls are fixed to the left end and the right end of the first horizontal wall respectively. A partition plate cavity is formed among the two first vertical walls, the first horizontal wall, and the bottom wall and the side wall of the rear girder assembly. The wheel cover supporting plate comprises a secondhorizontal wall, a third vertical wall and two second vertical walls, the lower surface of each second horizontal wall is fixed to the upper surface of the first horizontal wall, and a supporting plate cavity is formed among the outer surface of the lower middle end of the third vertical wall, the inner surface of the the wheel cover inner plate and the outer surface of the first horizontal wall.According to the lower vehicle body rear frame assembly, on one hand, the connecting points of the wheel cover supporting plates and the rear girder assembly are increased such that the connecting strength is enhanced, and on the other hand, stress concentration at the connecting positions of the wheel cover supporting plates and the rear girder assembly is avoided.
Owner:SAIC-GM-WULING AUTOMOBILE CO LTD
Combined die plate
InactiveCN106079042AImprove integrityAdd connection pointMouldsMould fastening meansEngineeringFlange
The invention belongs to the technical field of building prefabricated parts, and discloses a combined die plate. The combined die plate at least comprises a first flange die plate body, a second flange die plate body and a ribbing die plate body; the first flange die plate body is located on the upper portion of the second flange die plate body, the first flange die plate body and the second flange die plate body are connected into a whole through a connecting and fixing device, and the connecting and fixing device is located on the same side of the first flange die plate body and the second flange die plate body; the ribbing die plate body is located on the side, far away from the connecting and fixing device, of the first flange die plate body and the second flange die plate body and fixedly connected with the first flange die plate body and / or the second flange die plate. Accordingly, not only is a die conveniently managed, but also one die can achieve multiple purposes, the repeating utilization rate of the die is increased, and the apportioned cost of the die is reduced.
Owner:CHINA MINGSHENG DRAWIN TECH INVESTMENT CO LTD
Safety seat
PendingCN109455121AImprove stabilityIncrease contact areaChild seatsEngineeringMechanical engineering
The invention relates to a safety seat. The safety seat comprises a seat body, a base and a locking device for connecting the seat body and the base and is characterized in that the opposite end facesof the seat and the base are provided with a first engaged face and a second engaged face which abut against each other and are centrosymmetrically distributed, and after the base is not moved but the seat body rotates by 180 degrees, the first engaged face can still abut against the second engaged face; the locking device comprises a first locking assembly arranged on the base and a second locking assembly which is arranged on the seat body and can be cooperatively connected with the first locking assembly when the seat body and the base are assembled in a forward direction, and the arrangement positions of the first locking assembly and the second locking assembly meet the conditions that after the base is not moved but the seat body rotates by 180 degrees, the second locking assembly can still be cooperatively connected with the first locking assembly to achieve the reverse assembly of the seat body and the base. Compared with the prior art, the safety seat has the advantages thatfew parts are needed, the assembly is simple, the stability is high, and forward and reverse assembly can be achieved.
Owner:符锡炯
Efficient and energy-saving air source heat pump water heater
InactiveCN112254339AEasy to useSmall footprintFluid heatersWater/sewage treatment by irradiationThermodynamicsMechanical engineering
The invention relates to the technical field of water heaters, and discloses an efficient and energy-saving air source heat pump water heater which comprises a water heater body. A display screen is arranged at the bottom of the outer surface of the water heater body. A first cold water pipe communicates with the top of the left side face of the water heater body, and a second cold water pipe communicates with the bottom of the left side face of the water heater body. The bottom end of the second cold water pipe communicates with a cold water valve, and the bottom end of the cold water valve communicates with an adjusting valve. According to the efficient and energy-saving air source heat pump water heater, a mounting plate is mounted on the wall surface through expansion bolts, then a hoop is connected with a mounting rod on the wall surface in a clamped mode, and finally the water heater body is placed in a supporting ring, so that the water heater body is mounted on the wall surface, and the occupied area of the practical ground of a user is reduced; and the situation that the user accidentally collides with the surface of the water heater in the using process is not likely to happen, the good health of the user is guaranteed, the user can conveniently use the water heater, and the practicability is good.
Owner:广州翼安科技有限公司
Protective window with escape function
PendingCN113445887AFast and reliable responsePlay a role in unlockingShutters/ movable grillesBuilding rescueEngineeringStructural engineering
Owner:昆山麦途文化传媒有限公司
Assembly type partition wall board with stress releasing and convenient installation functions
The invention relates to the technical field of building walls, and particularly relates to an assembly type partition wall board with stress releasing and convenient installation functions. According to the specific technical scheme, the assembly type partition wall board comprises a wall board body and a butt joint wall board body fixed to the wall board body through a splicing assembly, and a plurality of first grooves and a plurality of second grooves are vertically formed in the corresponding butt joint faces of the wall board body and the butt joint wall board body correspondingly; and the splicing assembly comprises a splicing board and buckling pieces arranged on the upper surface and the lower surface of the splicing board, and the buckling pieces are inserted into the first grooves and the second grooves correspondingly to be fixed. According to the assembly type partition wall board, the problems that in the prior art, wall board butt joint is inconvenient, inaccurate and infirm are solved.
Owner:王辉
Heart valve prosthesis
PendingCN114681135AAdd connection pointImprove connection strengthHeart valvesBiomedical engineeringRat heart
The invention provides a heart valve prosthesis which is applied to the technical field of interventional medical prostheses. In the heart valve prosthesis provided by the invention, under the condition that the sizes of the valve leaflet connecting parts are the same, compared with the prior art that a closing hole is formed in a valve leaflet fixing structure; according to the embodiment of the invention, a plurality of valve leaflet connecting parts are arranged in the stent main body in the heart valve prosthesis, each row of holes of each valve leaflet connecting part at least comprises a double-row hole structure of a non-closed hole, so that more suture holes which are more compactly distributed can be formed in a valve leaflet fixing structure, connecting points of the valve leaflet and the stent are increased, and the valve leaflet fixing structure is more compact. The connecting strength of the valve leaflet and the stent is enhanced under the condition that the outer diameter of the stent is not increased after compression, and then the stability of the heart valve prosthesis in the working state is improved.
Owner:SHANGHAI MICROPORT CARDIOFLOW MEDTECH CO LTD
Bending device for metal processing
ActiveCN112775231AEasy to fixPrevent the phenomenon of detachment from the bending deviceMetal-working feeding devicesPositioning devicesMetal machiningStructural engineering
The invention discloses a bending device for metal processing, and relates to the technical field of metal processing. The bending device for metal processing comprises a base; a driving device, a positioning block I and a positioning block II are installed at the top of the base; the sides, close to each other, of the positioning block I and the positioning block II are both cambered, and the distance between the rear sides of the sides, close to each other, of the positioning block I and the positioning block II is smaller than the distance between the front sides; and the positioning block I is hollowed out to form a driving bin, a transmission bin and a positioning bin. According to the bending device for metal processing, columnar metal between the positioning block I and the positioning block II can be fixed with the cooperative use of a driving block and a positioning rod; even if the columnar metal is cambered, the positioning rod can well fix the columnar metal, and in the bending process, the larger the acting force generated on the driving block by the columnar metal, the larger the acting force generated on the driving block by the columnar metal, and accordingly, the phenomenon that the columnar metal is separated from the bending device in the columnar metal bending process is prevented.
Owner:嘉兴慧轶金属科技有限公司
Battery mounting part for vertically hooking battery pack and electric vehicle
PendingCN114274754ARandom combinationImprove seismic performanceCharging stationsElectric propulsion mountingElectrical batteryEngineering
Owner:AULTON NEW ENERGY AUTOMOTIVE TECHNOLOGY GROUP
Manufacturing method for preventing hole copper stripping of a PCB and PCB
PendingCN113382561AAdd connection pointFirmly connectedElectrical connection printed elementsPrinted element electric connection formationMetallurgyEngineering
The invention discloses a manufacturing method for preventing hole copper stripping of a PCB. The method comprises the following steps that: the PCB is manually detected, a qualified PCB is selected, and then cleaned and dried; a drilling point is ground to meet the design requirement, and then the drilling point is installed on drilling equipment; drilling is carried out on the PCB, so that the roughness of the hole wall is controlled within 25 microns; the inner layer of the hole is provided with at least one first connecting copper foil, and the two ends of the hole are respectively provided with a second connecting copper foil; and the PCB is electroplated to form a layer of hole copper on the hole wall, and the hole copper is connected with the first copper foil and the second copper foil respectively. The invention also discloses the PCB. The first hole ring is arranged on the inner layer of the hole, the internal binding force of the hole wall and the hole copper can be improved, and therefore the problem that the hole wall is separated from the hole copper after high-temperature tin spraying can be solved.
Owner:KUNSHAN DAYANG PRINTED CIRCUIT BOARD
Plant protection net and construction method thereof
ActiveCN112709236AImprove mechanical performanceImprove the protective effectWatering devicesExcavationsAgricultural engineeringStructural engineering
The invention discloses a plant protection net and a construction method thereof. The plant protection net comprises an inner protection net body and an outer protection net body, the inner protection net body and the outer protection net body are matched and connected together, rope boxes are arranged at the four corners of side ropes, the side ropes are connected to the rope boxes, rope grooves are formed in the inner ends of frames, the rope grooves are matched with inner net ropes, the inner net ropes are installed in the rope grooves, rope box grooves are formed in the four corners of each rope groove and matched with rope boxes, and the rope boxes are installed in the rope box grooves; the protection net is designed to be of a double-layer protective net body structure, and the two layers of protective net bodies are connected together through a certain connecting structure. The double-layer protection net body structure enhances the stress capacity of the protection net, and the protection effect on water and soil loss is improved; the inner protection net body and the outer protection net body are connected in an embedded mode, connection is simple, operation is convenient, and the inner protection net body and the outer protection net body are connected into an integrated structure.
Owner:浙江德利遮阳材料有限公司
How Paper is Made
ActiveCN103952940BIncrease attractivenessStrong shear resistanceNon-fibrous pulp additionNatural cellulose pulp/paperPaper manufacturingUltimate tensile strength
The invention discloses a method for making paper. The method comprises the following steps: preparing a sizing agent of certain concentration, adding ultra-high molecular weight cationic polyacrylamide of which the molecular weight is 8000K-30000KDa into the sizing agent, uniformly mixing to form a first mixture characterized in that positive charges covering the sizing agent, adding packing of certain concentration and with negative charges into the first mixture, uniformly mixing to form a second mixture characterized in that the sizing agent, the ultra-high molecular weight cationic polyacrylamide and the packing are wrapped with one another, adding a packing flocculating agent of which the molecular weight is 3000K-10000KDa into the second mixture so as to form a third mixture, dispensing pulp by using the third mixture and making into paper. In such a mode, the method improves the physical strength indexes such as internal aggregation and fracture resistance of the prepared paper.
Owner:GOLD EAST PAPER JIANGSU
Special bracket for connecting rod
ActiveCN102975584BExtended service lifeImprove securityResilient suspensionsVehicle frameEngineering
Owner:CHERY AUTOMOBILE CO LTD
Double-girder multi-lifting-point crane and working method thereof
PendingCN113879975AAdd connection pointImprove stabilityWinding mechanismsTrolleysMarine engineeringStructural engineering
The invention discloses a double-girder multi-lifting-point crane and a working method thereof, and relates to the technical field of cranes. The double-girder multi-lifting-point crane comprises two groups of gantries, double girders are fixedly connected between the two groups of gantries, an electric hoist is mounted in the double girders, a hook is mounted at the bottom end of the electric hoist through a connecting block, a multi-hanging-point hanger is installed at the outer side of the hook and comprises an assembly box, a plurality of winders are installed in the assembly box, a plurality of locking components used for limiting the winders are installed on the side face of the assembly box, and a reinforcing device is installed at the upper side of the assembly box. By means of the double-girder multi-lifting-point crane, the number of connecting points of the crane and a to-be-lifted object can be increased, the stability during lifting of a large object is improved, and the multi-lifting-point hanger is composed of two sets of box bodies, so that a user can conveniently assemble the multi-lifting-point hanger and the connecting block; and meanwhile, the multi-lifting-point hanger is provided with a reinforcing device, so that the overall stability of the multi-lifting-point hanger can be enhanced.
Owner:合肥市春华起重机械有限公司
Special bracket for connecting rod
Owner:CHERY AUTOMOBILE CO LTD
A system for extracting special solvent oil from stable light hydrocarbons
ActiveCN108165304BTake advantage ofHigh yieldDistillation purification/separationHydrocarbonsLimited resourcesEconomic benefits
Owner:宁夏百川通清洁能源有限公司
A nail removal device for orthopedics
ActiveCN111317556BImprove stabilityPrevent looseningOsteosynthesis devicesOrthopedic departmentEngineering
The invention discloses a nail taking device for the orthopedics department. The nail taking device comprises a support, a screw, a composite sleeve, a distraction loop bar and a distraction rod, wherein a plurality of supporting legs are arranged on the support, the screw is installed in the support, the screw is a hollow cylindrical pipe, vertical grooves are symmetrically formed in the inner wall of one end of the screw, a hollow screw head is arranged at the other end of the screw, a screw sleeve is installed on the screw head, connecting rods are symmetrically hinged to an end of the screw head, clamping pieces are arranged at the ends of the connecting rods, and connecting threads are arranged on the outer wall, connected with the screw head, of the screw; the composite sleeve is installed on the screw, protruding strips are installed in sliding grooves, and threads on the inner wall of a connecting sleeve are connected with the connecting threads in a matched mode; the distraction loop bar is mounted in the screw; and the distraction rod is installed in the distraction loop bar. By increasing acting force points acting on bone nails, the bone nails can be taken out more easily and are not prone to loosen, slip and break.
Owner:施田宝
Battery pack used for being horizontally hung on electric automobile and electric automobile
PendingCN114204176AAdd connection pointRestricted movementCharging stationsSecondary cellsElectrical batteryShock resistance
The invention discloses a battery pack used for being horizontally hung on an electric automobile and the electric automobile, and belongs to the field of electric automobile battery replacement. A battery pack is provided with an upper cover and a lower box body, a battery module is arranged between the upper cover and the lower box body, and the upper cover is provided with a second hanging piece which is used for moving to a position corresponding to a second hanging seat at the bottom of an electric vehicle in the vertical direction and moving into the second hanging seat in the horizontal direction. And the battery pack is hung in a second hanging seat on the electric vehicle. The second hitching piece is hitched in the second hitching seat in the vertical direction, so that the number of connecting points between the battery pack and the electric vehicle is increased, the mounting stability is improved, and the shock resistance of the battery pack in the running process of the electric vehicle is improved.
Owner:AULTON NEW ENERGY AUTOMOTIVE TECHNOLOGY GROUP
Decorative plate connection structure
InactiveCN100395420CImprove securityNo risk of loosening and falling offCovering/liningsEngineeringRivet
Owner:HUNTER DOUGLAS ARCHITECTURAL PROD CHINA LTD
Special vehicle body with double bearing structures
ActiveCN113942580AReduce the amount usedReduced Quantity RequirementsAmphibious vehiclesUnderstructuresVehicle frameBuoyant flow
The invention relates to a special vehicle body with double bearing structures. A special vehicle body with double bearing structures comprises a vehicle frame and a vehicle shell, the vehicle frame comprises a cab bearing part and a loading bearing part, the cab bearing part comprises cab longitudinal beams, cab cross beams and cab stand columns, and the cab longitudinal beams and the cab cross beams on the same layer define a closed ring. The cab cross beams and the cab stand columns which are vertically opposite define closed rings, the cab longitudinal beams and the cab stand columns which are vertically opposite define closed rings, and all the closed rings form a full-bearing truss structure. The loading bearing part comprises a bearing main beam extending front and back, and a transition connecting structure is arranged between the bearing main beam and the cab bearing part. The upper loading bearing part further comprises upper loading beams and upper loading stand columns, the vehicle shell comprises a ship shell plate frame structure arranged outside the upper loading bearing part, an upper loading area is arranged on the upper side of the upper loading bearing part, and a buoyancy cabin located on the lower side of a loading cabin is defined by the ship shell plate frame structure.
Owner:ZHENGZHOU YUTONG HEAVY IND
Decorative plate detachable connecting piece structure
InactiveCN100402779CImprove securityNo risk of loosening and falling offCovering/liningsMechanical engineering
Owner:HUNTER DOUGLAS ARCHITECTURAL PROD CHINA LTD
Steering transmission system and special vehicle
ActiveCN111114619BFirmly connectedEliminate hinged structuresAmphibious vehiclesSteering linkagesBogieVehicle frame
Owner:ZHENGZHOU YUTONG HEAVY IND
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