... T.: 2mm-200mm API 5L 2 Internal coating of line pipe for non-corrosive gas transmission service ... GB6479 20GSTPT480 (STPT49)ASTM A106C Alloy pipe for pipelineJIS G3458STPA20ASTM A335 P2 GB9948 GB6479 12CrMoSTPA22ASTM ... STPA 24, STPA 25,STPA 26JIS G3460 STPL 39, STPL 46, STPL 70JIS G3461 STB 35, ... STBA20,STBA22, STBA23, STBA24,STBA25, STBA26JIS G3464 STBL 39, STBL46, STBL 70JIS G3465 STM-C55, STM-C65, ...