Hipot Tester, Insulation Resistance Tester, Oil Tester manufacturer / supplier in China, offering ASTM D97 D2500 Cloud and Pour Point Test Bath Supplier, 12kv Insulation Power Factor Ipf Tester Transformer Capacitance & Tan Delta Test Equipment, Transformer Winding Resistance and Turns Ratio Diagnostic Tests TTR DC Resistance Tester and so on.