0.2um,

Teflon is divided into high-temperature Teflon and low-temperature Teflon. The surface smoothness can reach 0.2um, and the roller body runout is within 0.03mm. The general color is green, black.

Teflon is the trademark used by Chemours Company on its series of fluoropolymer products. Chemist Dr. Roy Plunkett invented the polymer in DuPont's laboratory in New Jersey, USA. Tetrafluoroethylene resin, DuPont uses "Teflon" as the brand name of this product.