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  • Vacuum pumps used in gas drainage
    Vacuum pumps used in gas drainage Coal mine gas accident in recent years, the industry needs to pay attention to the most important, once the mine will be able to catch dozens of innocent lives. Therefore, the safety equipment is definitely the coal industry can not be ignored, China fr...

  • Single-stage rotary vane vacuum pump How can I adjust the lower limit pressure
    Single-stage rotary vane vacuum pump How can I adjust the lower limit pressure? Single-stage rotary vane vacuum pump, also called XD-type rotary vane vacuum pump. XD type rotary vane vacuum pumps are single-stage oil-sealed rotary vane vacuum pumps, vacuum obtaining basic equipment. ...

  • 2BV series water ring vacuum pump Internal structure
    2BV series water ring vacuum pump Internal structure 2BV water ring vacuum pump Purpose and scope: 2BV series water ring vacuum pump for the overall structure - coaxial pump single stage pump. Seal mechanical seals, has a simple structure, simple installation, oil-free, safe and re...

  • Vacuum coating equipment glass lens coating knowledge
    Vacuum coating equipment glass lens coating knowledge Basic knowledge of vacuum coating equipment glass lens coating, you know, there are no objects on the light reflection, this is the reason that we can see things. For the lens, in order to be able to make the light through the lens c...