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  • ISO 9001(2008) : ACB, ATS, AISS
  • Patent 10-1475930 : Instrument transformer using insulating gas
  • Patent 10-0875518 : Base insulator with a built-in open current transformer
  • Patent 10-0894573 : Measuring display device on a switchboard
  • Utility Model Registration 0262676 : High-voltage electricity apparatus insulator
  • Utility Model Registration 20-0444961 : Mounting bracket for power cable termination connector
  • Utility Model Registration 20-0444510 : Test terminal blocks for transformer-operated watt-hour meter