题目内容:
A、角钢板厚不小于4mm,钢管壁厚不小于3.5mm,圆钢直径不小于14mmB、角钢板厚不小于3mm,钢管壁厚不小于4mm,圆钢直径不小于14mm
C、角钢板厚不小于3.5mm,钢管壁厚不小于3mm,圆钢直径不小于16mm
D、角钢板厚不小于4mm,钢管壁厚不小于3.5mm,圆钢直径不小于18mm
参考答案:
B、角钢板厚不小于3mm,钢管壁厚不小于4mm,圆钢直径不小于14mm
C、角钢板厚不小于3.5mm,钢管壁厚不小于3mm,圆钢直径不小于16mm
D、角钢板厚不小于4mm,钢管壁厚不小于3.5mm,圆钢直径不小于18mm