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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 etc.parts. The tradi...

  • Vertical oil-free vacuum pump maintenance and repair
    Vertical oil-free vacuum pump maintenance and repair 1. routine maintenance      1) Check and adjust the crankcase oil level in the normal position.      2) Ch...

  • 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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