This is a composites material with bronze wire mesh as frame and rolled with a film of filled poly tetrafluoroethylene.

This is of low friction and low wear, and is rather soft and is to be applied readily by inserting between the two rubbing metal surfaces, and can fulfill the ideal aim of no noise, no lubricating, no maintenance and no pollution.

At present, this is applied in those mechanical elements under relatively low load and low speed, such as in textile machinery, spherical bearings, automobile door hinge and the operating rod for cats.