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  • vacuum pump maintenance
    vacuum pump maintenance vacuum pump maintenance The quality of the vacuum pump depends on its mechanical structure and quality of oil, it must protect the use of a vacuum pump. If the distillation o...

  • Requirements for vacuum packaging materials
    Requirements for vacuum packaging materials            * First and foremost there is a certain degree of mechanical strength, not pull broken, torn, ...

  • Roots blower failure analysis and solutions
    Roots blower failure analysis and solutions   1, the impeller and the impeller friction (1) have contaminants on the impeller, resulting in the gap is too small; (2) gear wear, resulting in a large...

 
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