B级 单位：mm长度感度mm/1m底宽质量1000.02371.5kg0.050.11500.02402.3kg0.050.12000.02423.5kg0.050.12500.02466.3kg0.050.13000.02478.5kg0.050.1 A级 单位：mm长度感度(mm/1m)高度?底宽质量1500.0255?451.6kg0.050.12000.0255?502kg0.050.12500.0255?502.5kg0.050.13000.0255?503kg0.050.1 B级 单位：mm长度感度（mm/1m）高度?底宽质量1000.0238?361kg0.050.11500.0245?481.6kg0.050.12000.0245?482kg0.050.12500.0245?482.5kg0.050.13000.0245?483kg0.050.1