在预埋常用的国标刚性防水套管之前需要了解套管的类型,比如钢制套管和橡胶套管在施工方式和焊接方式上均有不同,而且使用场景的限制也相对较大,往往许多场合需要多种套管配合使用,或者需要对原套管进行锯切和改造,这都是要了解套管的特性,在预埋穿墙套管之前还要做哪些了解呢?
![预埋穿墙套管之前还要做哪些了解 预埋穿墙套管之前还要做哪些了解]()
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