軟密封中線對夾式蝶閥，雙偏心法蘭式蝶閥結(jié)構(gòu)緊湊，90°回轉(zhuǎn)開關(guān)輕松，密封可靠，使用壽命長，被廣泛用于水廠、電

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http://www.yjzzfm.net/content/?326.html 敞開式電動插板閥
http://www.yjzzfm.net/list/?20_1.html 放散閥
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http://www.yjzzfm.net/list/?114_1.html 物料閥
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http://www.cnryvalve.net/list/?97_1.html  電站閥
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