... bronze and iron and stainless steel as raw materials:gear wheel,worm wheel,worm, metals injection shaping; B. Plastics products which are ... of POM,nylon as raw materials as plastic gear wheel,worm wheel and other precise injection plastics;C. And providing ... , gearbox(servo motor, small toy gearbox, planetary gearbox), worm, worm wheel, plastic parts, casted and forged parts etcFor more information, ...