... -5-10-12-14-16-18-20Mainly used in boiler pipe & welded pipeCold Rolled CoilQ195, Q215, Q235, Q275, Q345ASTM, ... fertilizer equipment,high pressure boiler,low & mid-pressure boiler,etc.Stainless Steel Pipe300 SeriesGB,JIS,ASTM, DIN6-720mm, 0.5-65mmWidely ... conveying fluidGalvanized Steel PipeQ195-Q235GB,ASTM20-165mm,0.5-16mmWidely used in the construction,pipe of industrial,water pipe,fence equipment, ...