... ,DIN,BS 2.OEM service offered and various CNC machining 3.Good abrasion Small Worm Gear SpecificationsISO9001:2000 system ... and corrosion resistance&hardnessOEM service offered and Various CNC machiningHigh quality,reasonable price,considerate service.... Production way ... Major products: Casting, Bronze casting, Aluminum casting, Cast metal part, Copper fitting, Copper nut, Bushing, Gear, Worm and ...