... ) fluoride Long temperature paint (welding) cloth, is a suspension of polytetrafluoroethylene (commonly known as plastic ... . All because of their excellent performance, it is widely used in aviation, paper, food, environmental ... -to-clean surface attached to a variety of oil stains, stain, or other attachments; pulp Hu ... coefficient of friction (0.05-0.1), is oil-free self-lubricating the best choice. 5, ...