发布时间:2025-01-23 03:04:19
安装锌钢阳台护栏,一般会用到三种螺丝:一、M5.5拉铆螺丝(由螺杆和螺母两部分组成),二、M6*25钻尾螺丝(也称:自钻螺丝);三、拉爆螺丝,通常M8*80使用较多,也有用M10规格的。
签合同时有写此单价不含税费款一部分是从银行走 我有提供发票的义务吗
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