... Melting→Pouring→Opening→Finishing→Heat treatment→Non-destructive→Inspection→Welding→TestStandardASTM, ANSI, DIN, GB, NF, ISO, ... alloy InspectionUltrasonic test, magnetic particle test, tensile test, X-ray test, Liquid penetrate test, etc.Surface treatmentAnti-rust ... drawings—pattern—raw casting—machining—packing—delivery.Casting quality control system1. Drawing control Confidentiality–Be confidential ...