For now, existing CPP national manufacturer more than more than 30 production lines more than 40 articles, with a total production capacity of 150,000 about ~17 million tons/year. However, cast film with an exclusive reliance on imported materials for BOPP film, blown film seriously. Current annual imports accounted for 60% of the total amount. Domestic varieties of CPP special resin is single, only Shanghai petrochemical stock company and Beijing Yanshan Petrochemical Company, commonly used for heat sealing layer of composite film, half cooking film, aluminum retort film resin are used less. Meanwhile, domestic enterprises product similarity is more serious, like increasing equipment capacity is increasing faster than demand for mid-range products, market is relatively weak, inhibiting the expansion of film production and prices rose. In addition, in the past two years, multi-layer co-extrusion blown film market is in a growth stage, CPP film competition and the impact of some varieties.