问题描述： 110PVC下水管怎样加装三通 1个回答 分类：综合 2014-11-07 问题解答： 我来补答 我是说原来是110的直管子,需要用三通从中间引出,要怎么操作````````````````````````````````````````````````````````````````````````````````````````````````` 在你要装三通的地方把管锯开,110三通的中间应该是20公分,把直管锯掉20公分,把伸缩节往上敲几公分就可以粘三通了,粘好三通再把伸缩节往下敲几公分就搞定了 展开全文阅读
