... -5-10-12-14-16-18-20Mainly used in boiler pipe & welded pipeCold Rolled CoilQ195, Q215, Q235, Q275, Q345ASTM,GB, ... ,ASTM20-165mm,0.5-16mmWidely used in the construction,pipe of industrial,water pipe,fence equipment,telecommunication tubes as well as green ... ,25*25mm-100*100mmWidely supplied to areas of chemical industry,shipping industry,aichitecture,food industry,etc If you are really interested in the ...