发布时间:2025-01-17 15:37:48
地暖分集水器尺寸大小没有统一标准,但必须1、按符合管道设计手册对管道间距设计要求;
2、分集水器的横截面积必须大于所有分管的面积的总和。
预埋超压排气阀2型短管cl一155047一255047一3550是什么意思
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