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  • Glow plasma nitriding
    Glow plasma nitriding Glow plasma nitriding process began in the late 1960s, the then West Germany and Switzerland, this technology first used in the guns bore nitride, can improve the life of up to ...

  • Vacuum applications(二)
    Vacuum applications Vacuum application range is very wide, the following simple introduced the application situation and the main equipment in vacuum Vacuum crystallization Vacuum concentration and ...

  • Roots vacuum role in the transport and storage of
    Roots vacuum role in the transport and storage of (1) the temperature of crude oil mined from crude oil, is always accompanied by varying amounts of low molecular weight, methane, ethane, propane and o...

 
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