河北快3走势图

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  • 偏心旋转阀工作原理与结构特点

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  • 电动蝶阀的基础知识,技术知识

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  • 法兰蝶阀基本常识

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  • 蝶阀的安装与使用说明

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  • 高炉喷煤陶瓷阀门的选用

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  • 调节插板阀的选型

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  • 国内外阀门密封等级的选用

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  • Y型过滤器结构技术参数及选型原则

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  • 阀体的常用材料及各种材料热处理分析

    河北快3走势图 FATIDECAILIAOZHONGLEIFANDUO,SHIYONGYUGEZHONGBUTONGDEGONGKUANG。   FATIDECHANGYONGCAILIAOYOURUXIAJIUZHONG:   1.HUIZHUTIE,SHIYONGYUGONGZUOWENDUZAI-15~+200℃ZHIJIAN,GONGCHENGYALIPN≤1.6MPaDEDIYAFAMEN。 FATIDECAILIAOZHONGLEIFANDUO,SHIYONGYUGEZHONGBUTONGDE

  • 国家重点新产品双向压金属硬密封蝶阀

    YI.CHANPINJIESHAO SHUANGXIANGYAJINSHUYINGMIFENGDIEFASHIWOCHANGJISHURENYUANJINGYOUHUASHEJI,HANGUOJIAZHUANLIDEGAOXINGNENGJINSHUYINGMIFENGDIEFA。CAIYONGLE“XIEZHITUOYUANDIEBANJINGXIANGDONGPINGHENGMIFENGXITONG”,KEKAODISHIXIANLEDIEFAMIFENGLINGXIELOU,SHIZHENZHENGJUYOUGUOJILINGXIANSHUIPINGDEGAOKEJIXINCHAN

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