1、类别规格单位重量 kg/m截面面积 mm2采购HW1 1100*100*6*817.221.9125*125*6.5*923.830.31150*150*7*1031.940.55175*175*7.5*1140.351.43200*200*8*1250.564.28200*204*12*1256.772.28250*250*9*1472.492.18i#250*255*14*1482.2104.7难#294*302*12*1285108.3难300*300*10*1594.5120.4300*305*15*...