发布时间:2025-02-01 20:59:12
y有可能是室外雨水管。
d600是管径
0.002是坡度,千分之二
30是长度,30米。
管材不一定非要是砼管,这些个参数没表示材质。
家庭装修的时候,那些地方是我们要重点注重监督施工人员工作情况的地方
2025-02-01 20:59:12 2025-02-01 20:59:12 2025-02-01 20:59:12 2025-02-01 20:59:12 2025-02-01 20:59:12 2025-02-01 20:59:12 2025-02-01 20:59:12厨房水槽下水管安装好后发现除了2槽的管外 还有个细的管子 这个管子是怎么装的
2025-02-01 20:59:12 2025-02-01 20:59:12 2025-02-01 20:59:12 2025-02-01 20:59:12 2025-02-01 20:59:12 2025-02-01 20:59:12 2025-02-01 20:59:12 2025-02-01 20:59:12 2025-02-01 20:59:12 2025-02-01 20:59:12 2025-02-01 20:59:12 2025-02-01 20:59:12 2025-02-01 20:59:12 2025-02-01 20:59:12 2025-02-01 20:59:12 2025-02-01 20:59:12 2025-02-01 20:59:12 2025-02-01 20:59:12 2025-02-01 20:59:12 2025-02-01 20:59:12 2025-02-01 20:59:12 2025-02-01 20:59:12 2025-02-01 20:59:12 2025-02-01 20:59:12 2025-02-01 20:59:12 2025-02-01 20:59:12 2025-02-01 20:59:12 2025-02-01 20:59:12