发布时间:2025-01-20 12:15:07
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。
我家楼上在装修 可是每天7点不到就开工了 每天都会被他们吵醒 今天更是过分 7点不到就开始电钻
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