... .Thickness: 0.6-60mm 3. Material: ASTM A53,A106,A210,A283;ST33, ST37,ST52;S235, S355 etc A very specialized rectangular ... protocol6. Main Material:ASTM A53,ASTM A106 ASTM A210,ASTM A283,ST33, ST37-2,ST52, DIN1626,DIN1629,STPY41,G3452,G3457, S235 ...