发布时间:2025-01-28 11:38:14
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.
cheers芝华仕5756头等舱科技布功能沙发舒适耐用科技布材质
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