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  • Patent on Gas meter counter device durability test using a high speed offline (CN104697611 A)

    Patent on Gas meter counter device durability test using a high speed offline (CN104697611 A)
  • Patent on High-precision intelligent instrument counting and sampling device (CN202836651 U)

    Patent on High-precision intelligent instrument counting and sampling device (CN202836651 U)
  • Patent on Mechanical counter for gas meter  (CN202770486 U)

    Patent on Mechanical counter for gas meter  (CN202770486 U)
  • Patent on Oscillating quantity detecting device of counter adjusting gear (CN202770509 U)

    Patent on Oscillating quantity detecting device of counter adjusting gear (CN202770509 U)
  • Patent on Platform for detecting angle (CN201242422 U)

    Patent on Platform for detecting angle (CN201242422 U)