网上投注

  • <tr id='dM1D77'><strong id='dM1D77'></strong><small id='dM1D77'></small><button id='dM1D77'></button><li id='dM1D77'><noscript id='dM1D77'><big id='dM1D77'></big><dt id='dM1D77'></dt></noscript></li></tr><ol id='dM1D77'><option id='dM1D77'><table id='dM1D77'><blockquote id='dM1D77'><tbody id='dM1D77'></tbody></blockquote></table></option></ol><u id='dM1D77'></u><kbd id='dM1D77'><kbd id='dM1D77'></kbd></kbd>

    <code id='dM1D77'><strong id='dM1D77'></strong></code>

    <fieldset id='dM1D77'></fieldset>
          <span id='dM1D77'></span>

              <ins id='dM1D77'></ins>
              <acronym id='dM1D77'><em id='dM1D77'></em><td id='dM1D77'><div id='dM1D77'></div></td></acronym><address id='dM1D77'><big id='dM1D77'><big id='dM1D77'></big><legend id='dM1D77'></legend></big></address>

              <i id='dM1D77'><div id='dM1D77'><ins id='dM1D77'></ins></div></i>
              <i id='dM1D77'></i>
            1. <dl id='dM1D77'></dl>
              1. <blockquote id='dM1D77'><q id='dM1D77'><noscript id='dM1D77'></noscript><dt id='dM1D77'></dt></q></blockquote><noframes id='dM1D77'><i id='dM1D77'></i>
                ECV-X系列抗爆阀
                ECV-X系列抗爆阀
                ECV-X系列抗爆阀可用于保护核电站、石油化工厂、制药厂等的控制室,变配电所,仓库及石油平台等抗爆阀结构建筑的通风系统或排烟系统,防止一旦发生爆炸对掩体内的人员和设备造成破坏。
                产品特点
                Product features
                第三方检测认证
                阀芯自动复位,不受安装方式影响
                灵活安装,无任何ㄨ局限性
                抗震、抗龙卷风
                正负压双向通风、双向抗爆
                抗腐蚀、耐高低温