1.Standard:GB,JIS,DIN,ASTM A312,ASTMA269,ASTM268/268M 2.Certification:ISO9001 3.Material:304,304L,316,316L Stainless steel tube pipe1.Standard:GB,JIS,DIN,ASTM A312,ASTMA269,ASTM268/268M2.Certification:ISO90013.Material:304,304L,316,316L4.O.D:3/8",1/2",3/4",1",1 1/4",1 1/2",2",2 1/2",3",3 1/2",4",5",6",8",10",12",14",16",18"5.W.T:SCH5S,SCH10S,SCH40S,SCH80S Descriptionwelded stainless steel tube O. ...