Very Low Frequency AC Tester for Cable Testing 30kv WUHAN PRIMARY TESTER TECH&SCIENCE CO., LTD. Base Info Model NO.:VLF-30Trademark:HuayingTransport Package:Wooden CaseOrigin:China (Mainland)HS Code:9030390000 Description Pre:30kv Very Low Frequency Cable Tester Vlf Cable Tester Next:Very Low Frequency Withstand Voltage Testing Equipment Vlf Cable Tester 30kv