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MGY6505 直流电表校验仪
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Optics-HG series fully automatic image rapid measurement system
HG6503 multi-function calibrator / MGY6502B multi-function calibrator
HG6501 multifunctional standard source
HG5520 multifunctional standard source
HG-500A type electric welding machine field calibrator
MGY7501 multifunctional precision calibrator
MGY6502 portable multi-function calibrator
CY1198/ZX1198 megger calibration device
MGY1000D DC high current standard source
HG2516 series intelligent low resistance tester
HG-3018 three-phase electric energy meter calibration device
DO30-VI AC multifunctional calibrator
CY-500 leakage current tester
JD-1B ground resistance meter calibration device
ZX119-3 insulation resistance meter calibration device, megger calibration device
