发布时间:2025-02-07 09:07:52
钢管单米重量计算(kg/m):w=(外径-壁厚)*壁厚*0.02466
=2408*12*0.02466=712.57 kg/m
按造价形成划分建安工程费,下列属于夜间施工增加费的内容有( )。
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