... time Cold rolled steel coil carbon steel coil (SPCC, A36 ,Q235 Q345,S235jr,S275jr,S355jr..manufacture) Hot rolled Carbon steel plate ... sheet (Q235, Q345, SS400, A36, S235JR, S355JR, S45C, S50C, A573 gr65, ST37 ... ,ST37,ST52, Q195, Q215, Q235b,Q345b,S235JR, S355JR, S45C, S50CStandardsGB/T709-2006, ASTM A36, JIS G3101, DIN EN 10025, SAE 1045 ...