... DIN834.5-5-10-12-14-16-18-20Mainly used in boiler pipe & welded pipeCold Rolled CoilQ195, Q215, Q235, Q275 ... 8-12mm,1250/1500mmWidely used in light industry,decoration,machinary furniture,automobile,industry instrument,agriculture,etc.Seamless Steel PipeCr5Mo, Cr9Mo, 15CrMo, ... mid-pressure boiler,etc.Stainless Steel Pipe300 SeriesGB,JIS,ASTM, DIN6-720mm, 0.5-65mmWidely used in made mechamical parts and ...