发布时间:2025-01-28 11:32:21
你说的是沟槽管道连接方式,现在广泛用于建筑内的消火栓系统与喷淋系统.在设计图纸上一般不会标注出沟槽三通和机械三通的.当支管道小于DN50,且主管道直径大于分支直径2倍时可用机械三通(直接在主管道上开孔),其它情况得用沟槽三通.
一米长宽03米高两米的酒柜能站稳吗背面没有墙会不会很容易倒要放这样的柜子有什么方法
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