供应Q235B热轧一次成型25*25*3T型钢广泛用于农机配件五金配件电力设备幕墙装饰装潢铁路预埋件房屋预埋件钢结构养护家立柱电梯轨道小五金工具门窗配件建筑围栏间支撑工程加固等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*41.57供应Q235B热轧一次成型25*25*3T型钢T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*53.14供应Q235B热轧一次成型25*25*3T型钢T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)