不等边角钢GB/T706-208GB/T700-2006GB/T712-2000GB/T1591-2008ASTMA131-A131M-01 边长厚度边长偏差厚度偏差理重Kg/m9/5.66±1.5±0.66.71777.75688.77910/6.36±2.0±0.77.55078.72289.8781012.14210/879.656810.9461013.47611/7810.9461013.47612.5/8711.066812.5511015.4741218.33014/9814.1601017.4751220.7241423.90816/10 10±2.5±1.019.8721223.5921427.2471630.835主要牌号：Q235BQ345BCCSA/BCCSAH32/AH36ABSA/BABSAH32/AH36