... cold-rolled precision seamless and welded pipes,phosphated hydraulic pipes, galvanized pipes & tubes ,etc.Process Methodcold drawn and cold rolledstainless steel pipe SpecificationO.D ... ,TP347H; Duplex steel 2205(S32205),S31803, 2207(S32750); 904L(N08904)etc. StandardsAISI,ASME,ASTM A 213,ASTM A269,ASTM A312,ASTM A450,ASTM A789,ASTM A790,JIS ...