... , JIS, API 3.Size:1/2"~28 Carbon Steel Pipe A106/A53/API 5 L1. Material: Gr A, Gr B, X42 ... ,10#,20#,35#,45#,ST35.4,ST37.4,ST52, A105,A106,A210,A179,A192,Q195,Q235,Q2152. Standard: API 5L, ASTM ... A106/A53, ASTM A252,DIN 1629/2391/17172, JIS 3461/3462, ... ,HFW pipe,galvanized steel pipe etc. Supply Carbon Steel Pipe(A106/A53/API 5L) ex China Manufacturer