Kailian Yongrun is introducing an important new product for the lubricating grease industry, the wear preventive characteristics test machine. This machine adopts Four-ball method and conforms to ASTM D2266 and ASTM D2783. The four-ball wear-test method is used to determine the relative wear-preventing properties of lubricating grease under the test conditions. This machine is widely applied in petro-chemical industry, institutes and friction-related fields.