30kv 10mA Very Low Frequency Cable Vlf Tester WUHAN PRIMARY TESTER TECH&SCIENCE CO., LTD. Base Info Model NO.:VLFTrademark:HuayingTransport Package:Wooden CaseOrigin:China (Mainland)HS Code:9030390000 Description Pre:Battery Load Discharge Testing Unit for Power and Telecommunication Application Next:Portable AC Hipot Very Low Frequency Cable Tester