Teflon PTFE is cheap
Cheap Teflon PTFE (polytetra-fluoro-ethylene) Anti-stick coating which is the base and outer coating. These products have the highest operating temperature (290 ° C / 550 ° F) of all fluoro polymer coatings, with very low coefficient of friction, good resistance to scratch and to chemicals / corrosion.
Teflon PTFE is cheap
Cheap Teflon PTFE The main purpose of coating metal material (wok) is to create a non-stick coating such as those owned by teflon and also to prevent rust because it is oxidized by air. There are various methods of use of known coatings. If new cookware is purchased, make sure that the protective coating is cleaned first according to the product instructions
Teflon PTFE is cheap
Gland Packing Teflon