... 8GB5310 20G GB6479 20GSTPT480 (STPT49)ASTM A106C Alloy pipe for pipelineJIS G3458STPA20ASTM A335 P2 GB9948 GB6479 12CrMoSTPA22ASTM A335 P12DIN ... P5DIN 17175 12CrMo195GB9948 GB6479 1Cr5MoSTPA26ASTM A335 P9DIN 17175 X12CrMo91 EN seamless steel pipes standardStandard GradeEN 10208 L210GA, L235GA, L245GA, L290GA ... A, Grade BASTM A519 MT 1010, MT 1015, MT X 1015,MT 1020, MT X1020,1008, 1010,1012, 1015, ...