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Patent
  • Trade Mark Registration Certificate
  • Trade Mark Registration Certificate
  • Trade Mark Registration Certificate
  • relates to a parallel large displacement screw pump device
  • relates to a magnetic drive type air-cooled Roots vacuum unit
  • relates to a low noise screw chiller
  • relates to an anticorrosive screw vacuum pump
  • relates to an air cooled screw chiller
  • relates to an oil-free screw vacuum pump with a double cooling system
  • relates to a two-stage air-cooled Roots liquid ring vacuum unit
  • relates to a cleaning and maintenance device for a screw vacuum pump
  • relates to a vacuum unit device which is combined transformed by screw vacuum and Roots vacuum
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