stainless steel casting parts/handles/fittings--- ISO 9000 certificated SUS all grade ... and wear resistant cast parts.Austenitic Stainless Steel (300 series):303, 304, 316, CF4, CF8 etc.Martensitic Stainless Steel (400 series): 410, 440C 431 etc.Casting ... original techniques, such as coating, teeming, polishing, e-coating, painting, e-polishing, shot blasting, sand-spray, acid-pickling, vibration ...