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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, ...

  • Build international famous brand vacuum coating equipment manufacturing
    Shanghai GeHang vacuum technology, which is a representative enterprises in pvd vacuum coating area, through 20 years experience, leading coating brand has developed a famous vacuum coating equipment ...

 
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