Star shape thread clamping handle bolt bakelite hand knob tightening screw industry equipment plastic steel m5 m6 m8 | 1005003107704150

Star shape thread clamping handle bolt bakelite hand knob tightening screw industry equipment plastic steel m5 m6 m8 | 1005003107704150

Star shape thread clamping handle bolt bakelite hand knob tightening screw industry equipment plastic steel m5 m6 m8

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