Heat shrinkable film is widely used in the packaging of various fast foods, lactic acid foods, beverages, snacks, beer cans, various alcohols, agricultural and sideline products, dry foods, and souvenirs. Applications in non-food fields are also increasing, such as labels and bottle caps, seals, fibers and clothing, aerosol products, sporting goods, electrical products, cosmetics, pharmaceuticals, grease, detergents, stationery, toys, office supplies, kitchen supplies , Daily necessities, sundries, building materials, etc.