Grease Roller Stability Test Machine — SL-OA22 Overview The SL-OA22 Grease Roller Stability Test Machine is designed and manufactured in accordance with the petrochemical industry standard SH/T 0122 of the People's Republic of China, "Determination of the Stability of Grease on a Roller." It is engineered to measure the viscosity changes of grease after working on a roller tester under the conditions stipulated by the SH/T 0122 method, providing a reliable assessment of the