发布时间:2025-01-20 12:09:37
HDPE双壁波纹管采用橡胶圈承插连接。HDPE缠绕B型结构壁管,可以采用橡胶圈承插,但一般都采用热熔承插连接,比橡胶圈更牢靠。考虑到如果沟槽排水困难,用橡胶圈承插。
我家里是缺角房有图 我想问下怎么化解妈妈跟我都是属兔的求大师帮忙看一下
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