Standard: BS,GB,ASME,API,ASTM A106 Grade: Q215,Q235,Q345,A53B,A106B,ST37,GR.B,x46,x52,x60 OD: 1/4" to 36" thickness: max 50mm Length: max 12M Application: Gas pipe Section Shape: Round Surface Treatment: varnished Technique: Cold Drawn Type: Seamless Usage: Water,Oil,Gas tranporting