1.hot rolled channel steel 2.length:6m ,9m ,12m 3.material:Q195,Q215,Q235,SS400,SS540,A36 (1)size:50*25*3mm-300*90*9mm(2)material:Q195 Q215 Q235 Q345 A36 SS400 SS540(3)length:6m,9m,12mGB standard channel steelstandh(mm)b(mm)d(mm)teoretic weight550374.55.438kg/m 6.363404.86.634kg/m 8804358.045kg/m 10100485.310.007kg/m 12120535.512.059kg/m 13126535.513.4kg/m 14#a14058614.535kg/m 14#b14060816.733kg/ ...