常用的型号有：8#槽钢=8.045,10#/10.007,12#/12.059,14#/14.535,16#/17.24,18#20.174,20#22.637,25#27.41,28#31.427,30#34.463,32#38.083,36#47.814,40#58.928.这些都是a槽的每米重量.槽钢有A槽和B槽两种.14#以后分...