Tier co-extruded heat shrinkable packaging film is linear low density polyethylene and copolymer polypropylene as the main raw material, add the necessary additives, processed by extrusion blow molding process from the pof environmentally friendly plastic bags, its technology and traditional blow Different molding process, since the difference between the tensile properties of PP melt state, and therefore can not use a conventional blow molding process, and the use of double bubble process, also known as international Prandi process, which is the raw material melted by different extruders extruding out, through a specially designed co-extrusion die to form the beginning of the film after quenching opp environmentally friendly plastic bags, then heated secondary inflation stretching prepared products. Yiwu Chi Feng plastic bag factory located in Yiwu City, Zhejiang Province. Companies adhering to the "customer first, forge ahead" business philosophy, adhere to the "integrity management, customer first" principle to provide our clients with quality services. CPP film that is cast polypropylene film, also known as non-oriented polypropylene film, according to different uses can be divided into general CPP film, aluminum level and cooking class CPP film CPP film. CPP is a polypropylene plastic film industry by cast-extrusion process to produce. Different kind of film and BOPP films, is a non-oriented films. Strictly speaking, CPP film exists only a certain orientation in the longitudinal direction, mainly due to the nature of due process. By rapidly cooling the chill roll, the film-forming excellent clarity and finish. Yiwu Chi Feng plastic bag factory located in Yiwu City, Zhejiang Province. Companies adhering to the "customer first cpp environmentally friendly plastic bags, forge ahead" business philosophy, adhere to the "integrity management, customer first" principle to provide our clients with quality services. Thick green plastic bags, Henan environmentally friendly plastic bags, plastic bags provided by the Chi Feng Chi Feng plastic bag factory in Yiwu. Yiwu Chi Feng plastic factory (www.ywzhifeng.com) strong, credible, Jinhua in Zhejiang plastic bag industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Chi Feng plastic bag into the brilliant and you work for a better future!