Great Wall Special Grease No. 221 is a grease refined from synthetic oil with a thickener. It is suitable for corrosive media contact friction assemblies, such as metal-to-metal or metal-to-rubber contact surfaces, to play a lubricating and sealing role. It can also be used for the lubrication of rolling bearings.

This product is a general grease produced by Sinopec Great Wall Yiping Plant, which meets the SH 0459-92 (1998) implementation standard, has water resistance, and is suitable for the lubrication of equipment in humid areas. This product is a grease refined from synthetic oil thickened with a composite thickener.