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  • Use oil-free scroll vacuum pump gas ballast valve Notes
    Use oil-free scroll vacuum pump gas ballast valve Notes Plus gas ballast valve is mainly to draw special gases, including water vapor, including to ensure good performance of the pump suction. With ...

  • Select common vacuum pump oil
    Select common vacuum pump oil For vacuum pump manufacturer, the high quality of the oil, can improve the overall performance of the pump, to bring affordable for most users, resulting in a good social ...

  • Metallurgy of the Vacuum Arc Remelting Process
    Metallurgy of the Vacuum Arc Remelting Process The VAR ingot’s solidification structure of agiven material is a function of the  local solidification rate and thetemperature gradient ...

 
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