UNIVERSAL FOUR-BALL آلة الاختبار
UNIVERSAL FOUR-BALL TESTING MACHINE is used for testing extreme pressure & wear Preventive characteristics of lubricating oils, greases, evaluation of cutting fluids and polymer containing oils. Imperial Four-Ball Machines designed to perform tests as per the following International Standards ASTM D2596, ASTM D2783, ASTM D2266, ASTM …