Hipot Tester, Insulation Resistance Tester, Oil Tester manufacturer / supplier in China, offering ASTM D611 Automatic Petroleum Products Test Equipment Aniline Point Apparatus, Coolant Foam Tendency Testing Equipment ASTM D1881 Engine Antifreezes Foaming Propensity Apparatus, ASTM D381 Aviation Fuels and Motor Gasoline Existent Gum Content Test Apparatus and so on.