Taking a seven floors UPVC drainage experimental equipment as the study object,the vertical distance between the lowest horizontal branch and building drain pipe was measured.
以7层UPVC排水试验装置为研究对象,对最低横支管与排出管(立管连接处距排水立管管底)的垂直距离进行了测定。
CopyRight © 2020-2024 优校网[www.youxiaow.com]版权所有 All Rights Reserved. ICP备案号:浙ICP备2024058711号