Q235方矩管規(guī)格表 方管材質(zhì)(Q345)執(zhí)行標(biāo)準(zhǔn) GB/T6278-2002 矩形管材質(zhì)(Q345B)執(zhí)行標(biāo)準(zhǔn) GB/T6278-2002 方矩管規(guī)格 方矩管 壁厚 方矩管 壁厚 70x50 1.2-4.0 280x280 6.0-15.0 80x80 1.7-8.0 300x300 6.0-15.0 100x100 1.7-5.0 350x350 6.0-15.0 125x125 3.0-10.0 380x380 6.0-15.0 120x120 2.0-10.0 400x200 6.0-12.0 150x100 2.5-10.0 400x300 6.0-14.0 160x100 2.0-10.08 400x400 8.0-15.0 160x180 3.0-11.75 450x250 6.0-14.0 180x150 3.0-10.0 500x300 8.0-14.0
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