... Standard: ASTM,AISI,DIN,JIS,GB stainless steel tube/pipe/fitting1.Standard:GB,JIS,DIN,ASTM A312,ASTMA269, ... -12M or requested process methodcold rolled/cold drawn type welded applicationmainly used in decoration, for fluid and ... and middle pressure fluid transportation pipeline 2. Casing Tube 3. Boiler Pipe 4. Petroleunm and natural gas industry 5. ... .alibaba.com ISO AISI A554 SS tube pipe fitting profile