Huazheng Electric HZZL-3 Automatic Oil Interfacial Tension Tester Automatic Transformer Oil Interfacial Tension Test Equipment Surface Tension Tester

Huazheng HZJD-2 oil tan delta tester insulating oil dielectric loss and resistivity tester insulating oil dissipation factor analyzer

Huazheng HZJQ-3 Transformer Oil BDV Tester Transformer Oil Breakdown Voltage Test Dielectric Strength Of Transformer Oil transformer Oil BDV Test Device

Huazheng Electric HZBS-X3 close cup flash point tester automatic closed cup flash point measuring device

HuaZheng HZBS-3 Pensky-Martens Closed Cup Test Close Cup Flash Point Tester Closed Cup Flash Point Measuring Instrument