发布时间:2025-01-31 14:05:17
是的
一般是先把管路安装好,然后进行试验密封性,合格以后,进行预埋。
装修完毕,进行安装。
望能采纳
如何区分新古典主义、浪漫主义、唯美主义、自然主义四种风格的服
2025-01-31 14:05:17 2025-01-31 14:05:17 2025-01-31 14:05:17pe波纹管和pvc管哪个质量好 pe波纹管和pvc波纹管有什么区别
2025-01-31 14:05:17 2025-01-31 14:05:17 2025-01-31 14:05:17 2025-01-31 14:05:17 2025-01-31 14:05:17 2025-01-31 14:05:17 2025-01-31 14:05:17 2025-01-31 14:05:17 2025-01-31 14:05:17 2025-01-31 14:05:17 2025-01-31 14:05:17 2025-01-31 14:05:17 2025-01-31 14:05:17 2025-01-31 14:05:17 2025-01-31 14:05:17 2025-01-31 14:05:17 2025-01-31 14:05:17 2025-01-31 14:05:17 2025-01-31 14:05:17 2025-01-31 14:05:17 2025-01-31 14:05:17 2025-01-31 14:05:17 2025-01-31 14:05:17 2025-01-31 14:05:17 2025-01-31 14:05:17 2025-01-31 14:05:17 2025-01-31 14:05:17