china manufacturer wholesale worm gear plastic EP Product Description MaterialC45,40Cr,20CrMnTi,42CrMo,Copper,Stainless steel and so on as per your requests. ProcessingForging,Machining,Hobbing,Milling,Shaving, Grinding,Heat treatment...... Heat TreatmentCarburizing,Induction,Flame,Nitriding............
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