Hipot Tester, Insulation Resistance Tester, Oil Tester manufacturer / supplier in China, offering 40kv 60kv 80kv Portable High Withstanding Voltage Generator DC Hipot Tester, Kit De Prueba Vlf Hipot Very Low Frequency High Voltage Tester, Huazheng Hzdl-30000A High Current Tester 30000A Primary Current Injection Test Set and so on.