smokeproof damper
防烟阀
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排烟防火阀 pyfh-sdw ; pfhf-sd ; fire damper ; PYFH-DSW
复合式防火防烟阀 combination fire smoke damper
防烟防火阀 fyh-sdw ; FHJF
烟防火阀 MSFD ; GL-FKF
防火排烟阀 PY-BSD
供应排烟防火阀 PYFW
对闽桥大厦地下室排烟、排风、防烟楼梯间及其前室、消防电梯前室的排烟设计分析比较;介绍空调水系统中电动两通阀的应用。
This paper analyzes several proposals of air exhaust and smoke exhaust in highrise building basement, and briefly introduces electric valves in application of aircodition water system.
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