1. Compared with other plate type flue gas exhausts, the utility model has the advantages that when the valves are closed, the utility model has high gasproof performance and soundproof function.
阀门关闭时，有高的气密性能，并有隔音作用，优于其它型式的板式排烟口。
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2. Compared with other plate type flue gas exhausts, the utility model has the advantages that when the valves are closed, the utility model has high gasproof performance and soundproof function.
