POF shrink film, bidirectional tensile polyolefin shrink film is a kind of new packaging material that is widely used. Adopting advanced bidirectional tensile three layer melting extrusion technology, this product is featured with high transparency, high shrinkage, high toughness, heat sealing, static control, good cold resistance, high reliability and high security. It is widely used as the external packaging or group packaging of foodstuff, cosmetic, gift, ornament, stationery, audiovisual product, electronic product, wooden product, plastic and hardware, and daily articles etc. It is suitable for semi-automatic or automatic shrink packaging machine.