... Composition Analysis, Tensile Test, Dimension Inspection, Hardness TestingSurface TreatmentHeat Treatment, Machine, Polishing, Chrome, Zinc, Nickel PlatingPackingCartons, Wooden Case, Steel Cases, PalletsAdvantage1 ... and processing)5. Passed ISO 90001. These parts are used in machine assembly, valve &pump parts, auto &motorcycle parts, train & railway parts ...