... -5-10-12-14-16-18-20Mainly used in boiler pipe & welded pipeCold Rolled CoilQ195, Q215, Q235, Q275, Q345ASTM,GB ... and pipelines under high pressure or high tempretureOil casing pipeAPI J55, API K55, API L80, API N80, API P110GB9948-2000114-273mm, 4-13mmWall lining for ... -165mm,0.5-16mmWidely used in the construction,pipe of industrial,water pipe,fence equipment,telecommunication tubes as well as green ...