H74H對(duì)夾圓片式止回閥是一種超薄止回閥，它具有結(jié)構(gòu)簡(jiǎn)單，外形美觀、重量輕、安裝方便等優(yōu)點(diǎn)。主要適用于給水系統(tǒng)、石油、化工、冶金等工業(yè)部門(mén)對(duì)有安裝空間限制的場(chǎng)所zui為適用。對(duì)夾圓片式止回閥是一種超薄型的單瓣旋啟式止回閥，屬于自動(dòng)閥類。
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http://www.0577v.net/prod.asp?cid1=53 法蘭截止閥
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http://www.yjzzfm.net/list/?111_1.html 通風(fēng)碟閥
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