Type Maximum Thickness ( mm) Maximum Width ( mm) Yieid Limit ( mpa) Minimum Diameter ( mm) Top roiier diameter ( mm) Bottom roiier diameter ( mm) Weight( kg) Size ( mm) SBBM2x1020 2mm 1000mm 245 100 72 72 198 1480* 530* 1170 SBBM1.5x1270 1.5 mm 1270 mm 245 100 72 72 223 1750* 550* 1170 SBBM1.2x1530 1.2 mm 1530 mm 245 100 72 72 251 2000* 550* 1170