... drawings & OEM are welcome a variety of ring forging itemshigh quality of surface treatmentmaterial : stainless steel surface treatment ... forging , non-standard forging, precision forging , machining ect .The items including auto forging parts, motor forging parts, tools forging ... inhibiting oils , blacking ect .Capability : a veriety of tonnage of friction presses from 160T to 1600T , punch machine ...