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Composite tension-shear test device
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Countersunk head part head taper measuring device
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Pipe fitting hoop assembly
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Screw member vibration test tool
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Threaded fastener pretightening force measuring device
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Bolt and self-locking nut assembly
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Half module and mould
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Countersunk screw with controllable pretightening force and disassembling method thereof
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Mixed alkali for removing titanium alloy surface oxide and method for removing titanium alloy surface oxide
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Thread insert assembly mounting tool and method
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Self-locking nut unscrewing test device and method for grouped floating supporting plates
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Vacuum coating fixture and vacuum coating equipment
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Method for processing stainless steel tensile high-locking nut
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Measure measuring device of drill way chamfer angle
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Grinding device and surface grinding machine using same
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Fine adjustment positioning device and centerless grinding machine
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Spring washer toughness test device
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Lock nut compression deformation gauge
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Flaring test tool
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Elasticity test tool for hole steel wire check ring and mandrel assembly thereof
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