... .OEM service offered and various CNC machining 3.Good abrasion Small Worm Gear SpecificationsISO9001:2000 system certifiedStandard: ISO, ASTM JIS, DIN, BS ... , Aluminum casting, Cast metal part, Copper fitting, Copper nut, Bushing, Gear, Worm and Worm Wheel,Copper bushing and all non-ferrous ... metal alloy parts. We can supply kinds of worm gear as per your requests. Welcome your inquiry!