Fluoroplast bushings, Dnepropetrovsk region.

Fluoroplast is a unique material that is used in various spheres of industry and everyday life. Physico-mechanical properties and chemical resistance make it irreplaceable even compared to kaprolon. One of the varieties of products made from this material is fluoroplastic bushings. They are made by extrusion or pressing, followed by heat treatment of the product.
(//tractor-service.com)
Bushings made of fluoroplastic-4 obtained by pressing followed by heat treatment are intended for the manufacture of sealing, electrical insulation, antifriction, chemically resistant structural elements used in various industries, including food, and in medicine as parts of technological equipment (gaskets, liners, etc.). The production of parts from bushings is carried out by the method of mechanical processing.
"