国产一级a毛一级a看免费视频,久久久久久国产一级AV片,免费一级做a爰片久久毛片潮,国产精品女人精品久久久天天,99久久久无码国产精品免费了

PZ973H-16C電動刀型閘閥，鑄鋼電動刀型閘閥介紹：

PZ973H-16C電動刀型閘閥，鑄鋼電動刀型閘閥特點：

①閘板具有“閘刀”的功能，能有效的閘斷介質中各類雜物。

②閘板選用全材質不銹鋼，大大提高了防腐性，可有效的防止密封泄漏。

③上密封填料采用柔性 PTFE ，密封可靠、操作輕便靈活。

④占用有效空間小，能有效支持管道的強度，可減少管道振動的可能性。

型號：

電動刀閘閥型號:PZ971H-10C DN32/PZ971H-10C DN40/PZ971H-10C DN50/PZ971H-10C DN65/PZ971H-10C DN80/PZ971H-10C DN100/PZ971H-10C DN125/PZ971H-10C DN150/ PZ971H-10C DN200/PZ971H-10C DN250/PZ971H-10C DN300/PZ971H-10C DN350/ PZ971H-10C DN400/PZ971H-10C DN450/PZ971H-10C DN500/PZ941H-10C DN600/ PZ971H-10C DN700/PZ971H-10C DN800/PZ971H-10C DN900/PZ971H-10C DN1000

PZ971H-16C DN32/PZ971H-16C DN40/PZ971H-16C DN50/PZ971H-16C DN65/PZ971H-16C DN80/PZ971H-16C DN100/PZ971H-16C DN125/PZ971H-16C DN150/ PZ971H-16C DN200/PZ971H-16C DN250/PZ971H-16C DN300/PZ971H-16C DN350/ PZ971H-16C DN400/PZ971H-16C DN450/PZ971H-16C DN500/PZ941H-16C DN600/ PZ971H-16C DN700/PZ971H-16C DN800/PZ971H-16C DN900/PZ971H-16C DN1000/PZ971H-25C DN32/PZ971H-25C DN40/PZ971H-25C DN50/PZ971H-25C DN65/PZ971H-25C DN80/PZ971H-25C DN100/PZ971H-25C DN125/PZ971H-25C DN150/ PZ971H-25C DN200/PZ971H-25C DN250/PZ971H-25C DN300/PZ971H-25C DN350/ PZ971H-25C DN400/PZ971H-25C DN450/PZ971H-25C DN500/PZ941H-25C DN600/ PZ971H-25C DN700/PZ971H-25C DN800/PZ971H-25C DN900/PZ971H-25C DN1000/PZ971H-40C DN32/PZ971H-40C DN40/PZ971H-40C DN50/PZ971H-40C DN65/PZ971H-40C DN80/PZ971H-40C DN100/PZ971H-40C DN125/PZ971H-40C DN150/ PZ971H-40C DN200/PZ971H-40C DN250/PZ971H-40C DN300/PZ971H-40C DN350/ PZ971H-40C DN400/PZ971H-40C DN450/PZ971H-40C DN500/PZ941H-40C DN600/ PZ971H-40C DN700/PZ971H-40C DN800/PZ971H-40C DN900/PZ971H-40C DN1000/PZ971H-64C DN32/PZ971H-64C DN40/PZ971H-64C DN50/PZ971H-64C DN65/PZ971H-64C DN80/PZ971H-64C DN100/PZ971H-64C DN125/PZ971H-64C DN150/ PZ971H-64C DN200/PZ971H-64C DN250/PZ971H-64C DN300/PZ971H-64C DN350/ PZ971H-64C DN400/PZ971H-64C DN450/PZ971H-64C DN500/PZ941H-64C DN600/ PZ971H-64C DN700/PZ971H-64C DN800/PZ971H-64C DN900/PZ971H-64C DN1000/PZ971H-100C DN32/PZ971H-100C DN40/PZ971H-100C DN50/PZ971H-100C DN65/PZ971H-100C DN80/PZ971H-100C DN100/PZ971H-100C DN125/PZ971H-100C DN150/ PZ971H-100C DN200/PZ971H-100C DN250/PZ971H-100C DN300/PZ971H-100C DN350/ PZ971H-100C DN400/PZ971H-100C DN450/PZ971H-100C DN500/PZ941H-100C DN600/ PZ971H-100C DN700/PZ971H-100C DN800/PZ971H-100C DN900/PZ971H-100C DN1000