There are many kinds of materials used in protective films, such PE, PET and OPP. The film is mainly used during prodution of products and delivery of finished products. Stretch film is a kind of film with thinness and high tensile strength made from PE materials.And it's mainly used on packaging. For example, logistics companies, transport companies and express companies use it to pack products.And composite flim is composited with several different materials, like PE and PET. This type of film is more high-temperature resistant than ordinary PE protective film.
