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Patent Certificate

  • A Quick Connector For A Rotary Drilling Rig
  • A Quick Connector With Double Flow Channel Design
  • A New Type Of Quick Connector
  • A Quick Connector For Gas
  • A Kind Of Quick-Change Joint For High-Pressure Gas
  • A Self-Locking Connection Connector
  • A New Type Of Combined Valve Core Structure
  • A New Type Of Flat Quick Connector
  • An Integrated Valve Seat Structure

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