PET material is commonly used as a material for transparent blister packaging. It is wayward, transparent in texture, and environmentally friendly up to food grade. Commonly used in export and blister packaging with high environmental protection requirements, most of them are used as beverage containers such as colored soda.
  
PS material features, small density, light weight, environmental protection and non-toxic. The plasticity is very good, the disadvantage is that the toughness is not good, it is only suitable for inner support, and it can not be made of transparent materials. Such materials are commonly used in refrigerators, air conditioners, ice cream packaging and disposable washware.
 
PP material is translucent, especially soft, good toughness, environmental protection, non-toxic, high temperature resistance. It is mainly used for packaging of food blister trays, and it is the only material that can be microwaved.