... automobile,industry instrument,agriculture,etc.Hot Rolled CoilQ195,Q235,Q345ASTM,GB,DIN834.5-5-10-12-14 ... in boiler pipe & welded pipeCold Rolled CoilQ195, Q215, Q235, Q275, Q345ASTM,GB,JIS,DIN0.4-1.9mm, ... ,430,601,800,904L, etcST37-2, ASTM A36,S235JR,S355JR,SS4001.8-12mm,1250/1500mmWidely used ... gas fieldsWelded Steel Pipe10#,20#,45#,Q195,Q215,Q235,Q345,etcGB,ASTM20-426mm,0.5-10mmMainly used in ...