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HBSQ-F closed explosion-proof hand stubbu

2024-01-26

Z

HBSQ-F closed explosion-proof hand pour gourd is based on aluminum bronze and 铍 bronze as a rough. The force friction site includes a lifting wheel, a bracelet, a wall, a wall plate, a hook, a gear, and a gear shaft formed. During use, chain grinding will not cause sparks. The structure adopts a closed structure, and it is not afraid of the rain, so that the internal gear and so on have been better protected.