PB shrink bag is a 5-layer coextrusion film with scientific formula, which is composed of PE and PVDC materials. Pb bags not only has high transparency, but also has excellent oxygen resistance. Commonly used in poultry shrink bags, meat shrink bags, cheese bags, vacuum bags, etc. features: Safety grade: ISO9001, food grade materials. Capability: water vapor resistance, oxygen resistance, high transparency and printability Customization: acceptable Application: poultry, raw meat, mutton, ham, sausage, cheese, frozen meat.etc