5400?250?500,5600?200?460。8300/4500/1400/2400,8300/4500/1430/2370,8500/4700/1400/2400,8500/4700/1430/2370。/Q235,焊接,截面高120mm,截面宽60mm,下边缘离地高450mm。5400?250?500,5600?200?460。8300/4500/1400/2400,8300/4500/1430/2370,8500/4700/1400/2400,8500/4700/1430/2370。/Q235,焊接,截面高120mm,截面宽60mm,下边缘离地高450mm。