Standard capacitor loss box (dedicated for RLC measuring instruments)

Digital track gauge (electronic track gauge)

Special load device for DC welding machine

Suspended solids rapid analyzer

SHZ-DFE type constant speed source

Soap film gas flow standard device

Sand and dust test chamber calibration device

Meter meter calibration device

Ultrasonic flaw detector calibration device (compliant with new standards)

On site calibration instrument for welding machine

Total station frequency detection device

Sand core filter funnel measuring aperture verification device