CPET is polyethylene terephthalate material, which is odorless, tasteless, colorless and non-toxic, and is recognized as an excellent food packaging material in the world today. After a special process, CPET sublimates into a special material that is resistant to low temperature -40℃ and high temperature 220℃. CPET material itself has good barrier, oxygen permeability is only 0.03%, and the more it is heated, the stronger the barrier performance, the freshness and quality of food preservation function is incomparable to any material. Widely used in airline meals, manufacturing microwave ovens and oven trays.