Insulating Oil Tangent Delta Tester WUHAN PRIMARY TESTER TECH&SCIENCE CO., LTD. Base Info Model NO.:HYGYTrademark:HuayingTransport Package:Wooden CasesOrigin:China (Mainland)HS Code:903084900 Description Pre:Hot Sales Portable Circuit Breaker Analyzer Next:Digital Automatic Dielectric Dissipation Tester