... -5-10-12-14-16-18-20Mainly used in boiler pipe & welded pipeCold Rolled CoilQ195, Q215, Q235, Q275, Q345ASTM,GB ... -165mm,0.5-16mmWidely used in the construction,pipe of industrial,water pipe,fence equipment,telecommunication tubes as well as green ... house tubes for different planting and breeding business.Line PipeAPI J55 ...