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      High tech Enterprise Certificate more
      A utility model patent certificate for a sealing fixture used in pressure and explosion testing of pipes more
      A utility model patent certificate for a high-precision multi temperature controlled constant temperature water tank more
      A utility model patent gift book for an anti blocking solenoid valve more
      A utility model patent for a multi temperature controlled pipe constant temperature water tank more
      Copyright of dumbbell testing machine measurement software more
      Design patent more
      Double temperature control pipe pressure and explosion testing machine more
      Thermal deformation measurement and control system more
      Copyright of the software for measuring the pressure resistant blasting test machine more
      Constant temperature water tank measurement and control system more
      Hebei Province's technology-based small and medium-sized enterprises more
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