Oil Purifier, Fire Testing Equipment, Electrical Testing Equipment manufacturer / supplier in China, offering Automatic Transformer ASTM D971 Oil Tensiometer by Platinum Ring Method, Foaming Tendency Analyzer ASTM D892 Petroleum Lubricating Oil Foaming Characteristic Tester, ASTM D113 Precision Ductility Testing Apparatus for High-Temperature Asphalt and Bitumen and so on.