... casting , gravity casting , sand castingMachiningTurning , milling , drilling , grinding , threading , CNC machining, etc.FinishingSand blasting , polishing , plating , acid treatment , anodizing , painting and ... , hardness testing, tensile testing, impact testing.CertificateISO9001:2000 / TS16949Main productsCNC Machining Parts , Investment Castings gear WG1014A