NKJ61H真空截止閥閥蓋填料室設(shè)有真空密封結(jié)構(gòu)，具有自脹壓緊作用，閥瓣密封面與閥座密封面采用STL堆焊,保證了耐磨/零泄漏。密封面運動磨擦力小、啟閉輕便，而且密封面磨損有自動補償功能。

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http://www.yjfmw。。ｃｏｍ/list/?20_1.html 渦輪通風碟閥
http://www.yjfmw。。ｃｏｍ/list/?135_1.html 刀型閘閥廠家

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http://www.yjzzfm。。ｎｅｔ/list/?113_1.html 盲板閥
http://www.yjzzfm。。ｎｅｔ/content/?321.html 渦輪式扇形盲板閥
http://www.yjzzfm。。ｎｅｔ/content/?320.html 電動扇形盲板閥
http://www.yjzzfm。。ｎｅｔ/content/?319.html 手動扇形盲板閥
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http://www.yjzzfm。。ｎｅｔ/list/?111_1.html 通風碟閥
http://www.yjzzfm。。ｎｅｔ/content/?322.html D941W電動通風蝶閥