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  • Vacuum pump development
    Vacuum pump development With the development of the application of vacuum, the vacuum pump has developed a variety of species, their pumping speed from zero point liters per second to hundreds of thou...

  • Rotary vane pump maintenance and repair
    Rotary vane pump maintenance and repair 2XZ, XZ 1. Maintain clean the pump to prevent debris entering the pump 2. Keep the oil level 3. Improper storage, water or other volatile substances into the...

  • Vacuum brazing of copper tubes using Ag-Cu filler (3)
      Vacuum brazing of copper tubes using Ag-Cu filler (3)    Fig.3 Microstructure of copper tube vacuum brazing joints when brazing temperature is 810oC with different holding ...

 
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