发布时间:2025-01-29 19:11:25
不能一样大,主水管如果细了影响水流量直接导致地暖不热,分水管倒是无所谓,细的就间隙小些多盘几圈,粗的可以把间隙设计大一些,不过由于分集水器的设计问题,一般主水管都采用40的比较多,分水管20 25的多。
广州摇号政策中提到的有效居住证满三年 如何确认个人的居住证时间
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