316 EFW stainless steel pipe 1. Standard: ASTM, AISI,JIS, DIN 2.OD 14-630mm W.T 2.5- ... 55mm 3. Surface: 2B, No.1 316 EFW stainless steel pipe1 ... . Standard: ASTM, AISI,JIS, DIN 2.OD 10-630mm W.T 0 ... : 2B, No.1 et4. Material:201,202,301,302,303,304,304L,309,310,316,321,410,410S,420,420J1,430 ...