... API 5L, ASTM A106/A53, JIS G3456/3461 , DIN1626/1629/17175 Certificate:ISO 9001, SGS, BV, etc. Steel Pipe for Boiler with ... : 3.0 , 5.8 , 5.85 , 5.9 , 6.0 ,11.8 , 12.0m. Unfixed: 5-12mStandardASTM A53,A106,API 5L,ASME B36.10M ... JIS G3455,JIS G3456,JIS G3457,JIS G3461MaterialA53B, A106B, API 5L B,X42,X46,X52,X60, X65, X70, ... X80,Q235ST37.0,ST35.8,St37.2,St35.4/8,St42,St45,St52,St52.4STP G38,STP ...