方管计算公式
来源：华拓科技网
方管计算方钢边长mm方钢边宽mm壁厚mm50501.52500220929150701.235003217.76282.2450701.735003103.56396.4440601.5240021092910.0002912.2843513.7061#DIV/0!000000000#DIV/0!0#DIV/0!#DIV/0!000000000#DIV/0!0#DIV/0!000000000外面积内面积表面积1米体积1米重量kg1根重量kg1吨根数每吨价钱0.0002910.00028220.000392.284352.2155843.11205413.706113.29350418.67232472.96021575.22471153.55519872.960215000000000每根价钱黄色区域为根据实际填写