... parts, spring, heat sink, stamping and other precision metal products. metal machining part1. Material:Carbon steel,stainless steel,copper ... as per customers requirements.4.Application: auto part, Medicine part, machine part, building part, household hardware, etc Material: Different kinds ... ) Quality assurance in accordance with ISO9001: 2008 6) Part size: Diameter from 0.5mm to 600mm 7) Tolerance ...