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    <description>Latest 20 articles of 蝶阀</description>
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      <title>美标球阀</title>
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      <description><![CDATA[产品规格：Q41F型

产品类别：球阀系列
制造厂家：永一阀门

产品口径：15～200MM 

产品压力：1.6～4.0MPa
产品概述
球阀在石油、天然气、煤炭和矿石的开采、提炼加工和管道输送系统中；在化工产品、医药 ...]]></description>
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      <pubDate>Sun, 04 Aug 2019 02:01:35 +0000</pubDate>
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      <title>法兰式硬密封蝶阀</title>
      <link>https://www.yongyifamen.com/article-175-1.html</link>
      <description><![CDATA[主要性能参数
 


    
        
            
            公称通径
            
            
            DN(mm)
            
            
            50～2000
            
        
      ...]]></description>
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      <author>永一安全阀</author>
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      <title>电动法兰式硬密封蝶阀</title>
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      <author>永一安全阀</author>
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      <title>对夹连接金属弹性密封与四氟密封蝶阀</title>
      <link>https://www.yongyifamen.com/article-49-1.html</link>
      <description><![CDATA[对夹连接金属弹性密封与四氟密封蝶阀                                                             产品描述]]></description>
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      <pubDate>Thu, 01 Aug 2019 17:14:46 +0000</pubDate>
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      <title>蜗轮传动对夹式硬密封蝶阀</title>
      <link>https://www.yongyifamen.com/article-41-1.html</link>
      <description><![CDATA[蜗轮传动对夹式硬密封蝶阀                                                             产品描述                    产品概述： 　　我厂引进能够国外先进技术的基础上，采用精密的J形弹性密封圈和三偏心多层次 ...]]></description>
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      <pubDate>Thu, 01 Aug 2019 17:14:30 +0000</pubDate>
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      <title>对夹式蜗轮传动软密封蝶阀</title>
      <link>https://www.yongyifamen.com/article-42-1.html</link>
      <description><![CDATA[对夹式蜗轮传动软密封蝶阀                                                             产品描述                    产品概述： 　　我公司研制的软密封中线对夹式蝶阀，双偏心法兰式蝶阀结构紧凑，90°回转开关 ...]]></description>
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      <title>对悍式硬密封蝶阀</title>
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      <description><![CDATA[对悍式硬密封蝶阀                                                             产品描述                    产品概述： 　　我厂引进能够国外先进技术的基础上，采用精密的J形弹性密封圈和三偏心多层次金属硬密 ...]]></description>
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      <title>蜗轮传动硬密封蝶阀</title>
      <link>https://www.yongyifamen.com/article-44-1.html</link>
      <description><![CDATA[蜗轮传动硬密封蝶阀                                                             产品描述                    D343H蜗轮传动硬密封蝶阀产品型号：D343H产品概述：　　我厂引进能够国外先进技术的基础上，采用精 ...]]></description>
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      <title>手动扳手金属弹性密封与四氟密封蝶阀</title>
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      <description><![CDATA[手动扳手金属弹性密封与四氟密封蝶阀                                                             产品描述]]></description>
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      <author>永一安全阀</author>
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      <title>手动蜗轮金属弹性密封与四氟密封蝶阀</title>
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      <description><![CDATA[手动蜗轮金属弹性密封与四氟密封蝶阀                                                             产品描述]]></description>
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      <title>电动金属弹性密封与四氟密封蝶阀</title>
      <link>https://www.yongyifamen.com/article-47-1.html</link>
      <description><![CDATA[电动金属弹性密封与四氟密封蝶阀                                                             产品描述]]></description>
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      <title>气动金属弹性密封与四氟密封蝶阀</title>
      <link>https://www.yongyifamen.com/article-48-1.html</link>
      <description><![CDATA[气动金属弹性密封与四氟密封蝶阀                                                             产品描述]]></description>
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      <author>永一安全阀</author>
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