Abstract High performance polymeric materials such as poly-ether-ether-ketone (PEEK) are increasingly being used for challenging tribological applications in order to replace metal parts in vehicle engines and transmissions. The tribology of natural PEEK. under oil-lubricated conditions. was studied for different metal counterbody finishes. https://www.jmannino.com/hot-offer-University-of-Tennessee-Knoxville-Collegiate-Text-Galaxy-S23-Clear-Case-p107375-amazing-offer/