... gear application:large gear reduction material:stainless steel gear stainless steel gearCNC worm gearmaterial:casting steel,forging steel, casting iron,steel alloy(30CrMnSi,20Cr ,9310,4303and so ... ,nylon,delrin and othersprocessing:machine turning,machining milling,grinding,finish,heat treatment available finish:.polishing·Powder Coating·Electrophoresis·Chrome Plating·Anodization·Vibratory ...