发布时间:2025-02-07 10:13:58
需要。根据查询装修网得知,外墙烟道安装属于高空安装工程,施工人员需要高空操作证。高空作业资质分为二级、三级,其中二级资质标准包括4项施工项目。
急急急, 户外音响开到最大声音,还是很小的声音, 怎么回事呢
2025-02-07 10:13:58 2025-02-07 10:13:58 2025-02-07 10:13:58 2025-02-07 10:13:58 2025-02-07 10:13:58 2025-02-07 10:13:58 2025-02-07 10:13:58 2025-02-07 10:13:58 2025-02-07 10:13:58 2025-02-07 10:13:58 2025-02-07 10:13:58 2025-02-07 10:13:58二楼挑梁出15米上22mm钢筋2条下16mm钢筋2条箍筋8隔15cm 梁高50cm 宽18cm 跨度6米上面是3米十八红砖墙
2025-02-07 10:13:58 2025-02-07 10:13:58 2025-02-07 10:13:58 2025-02-07 10:13:58 2025-02-07 10:13:58 2025-02-07 10:13:58 2025-02-07 10:13:58 2025-02-07 10:13:58 2025-02-07 10:13:58 2025-02-07 10:13:58 2025-02-07 10:13:58 2025-02-07 10:13:58 2025-02-07 10:13:58 2025-02-07 10:13:58 2025-02-07 10:13:58 2025-02-07 10:13:58 2025-02-07 10:13:58 2025-02-07 10:13:58 2025-02-07 10:13:58 2025-02-07 10:13:58 2025-02-07 10:13:58 2025-02-07 10:13:58 2025-02-07 10:13:58