JTW self-lubricating thrust washers, with a copper alloy (ZCuZn24Al6) wear resistance and self lubricating properties of solid lubricant to make it in the course without refueling maintenance. The products are widely used for high load, intermittent or oscillating motion, such as the steam locomotive production lines, turbines, reservoirs, work / accidents doors, plastic machinery. Depending on the conditions, can provide various types of copper alloy.