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  • How to maintain the vacuum pump
    How to maintain the vacuum pump Bit worn shaft bearings Vacuum transmission parts wear is a common problem, including bearing position, bearing, bearing chamber, keyways, thread The tradi...

  • Various working principle of Vacuum coating equipments
    Vacuum coating equipments can be divided into: evaporation vacuum coating equipments, magnetron sputtering vacuum coating equipments and ion plating vacuum coating equipments. Evaporation vacuum c...

  • Heat treatment on metals (3)
    Heat treatment on metals (3) Precipitation hardening Main article:Precipitation hardening Some metals areclassified as precipitation hardening metals. When a precipitat...

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