... supreme quality pinion shafts that are made from tested cnc machine partsOur company is HangZhou QianJiang Hardware and Electronic Appliance Co ... ,IndustryTolerance0.020-0.002MMsurfacetreamentplated zinc,nickel,anodizingCertificateISO9001:2000equirementcnc machining,pounding machine,bending machine,millingmachine,processing department,drilling machine cnc machine parts