stainless steel precision casting --- ISO 9000 certificated Stainless Steel OEM/ODM 20 YEARS' ... 400 series): 410, 440C 431 etc.Casting tolerance: CT4 to CT9 according to ISO 8062 casting tolerance.Machine tolerance: Can be offered ... , teeming, polishing, e-coating, painting, e-polishing, shot blasting, sand-spray, acid-pickling, vibration grinding, electrochemical polishing, bright burnishing, surface ...