发布时间:2025-01-31 13:13:25
普通高层是生活水泵房的变频水泵直接供水
超高层在楼栋中间设立二次水箱,再利用水泵向上压送。
主要看楼房的高度来决定供水的方式。
byk333和byk306流平剂分别用来做uv光油有什么区别
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