API 5L Gr B. ERW Steel Pipe
API 5L Gr B. ERW Steel Pipe 1)Material: Q195-Q235,SS400,ASTM A53/A106,BS1387 2) Round,square,rectangular,radiator,oval pipe Standard GB, ASTM, API Standard GB/T9711, ASTM A312-2001, ASTM A53-2007, API 5L Grade 10#-45#, 16Mn, Q195-Q345 Grade 10#,...