Oil Purifier, Fire Testing Equipment, Electrical Testing Equipment manufacturer / supplier in China, offering Dynamic Viscosity of Petroleum Asphalts by Vacuum Capillary Viscometer (ASTM D2171), Automatic Cleveland Open Cup Tester (ASTM D92) for Flash and Fire Point, Dual-Standard Digital Karl Fischer Titrator for Water Content: ASTM D6304 (Coulometric) & ASTM D1533 (Volumetric) and so on.