热轧T型钢T型钢型号规格米重型号规格理算T型钢20*320*20*30.9420*420*20*41.26T型钢25*325*25*31.1825*425*25*41.57T型钢30*330*30*31.4130*430*30*41.88T型钢35*335*35*31.6535*435*35*42.2T型钢40*440*40*42.5140*540*40*53.14T型钢45*445*45*42.8345*545*45*53.53T型钢45*645*45*64.2450*450*50*43.14T型钢50*550*50*53.9350*650*50*64.71T型钢60*660*60*65.6560*760*60*76.59T型钢36*6036*60*53.7736*60*836*60*8)