Properties and applications of commonly used plastic compound bags: First, BOPP / LLDPE double layer compound bags properties: moisture-proof, cold-resistant, low-temperature heat seal tensile strength; application: Instant Noodles, snacks, frozen snacks, powder packaging, etc. . Bopp / CPP two-layer compound bag features: moisture-proof, oil-resistant, high transparency, good stiffness; Application: Instant Noodle, Biscuit, candy, all kinds of heavy food and so on. Bopp / VMCPP two-layer compound bag features: moisture-proof, oil-resistant, oxygen-proof, shading, good stiffness; Application: All kinds of dry food, fried food, potato chips, etc. . Bopp / VMPET / LLDPE three-layer compound bag characteristics: moisture-proof, oxygen-proof, shading; Application: All kinds of food, rice snacks, snacks, tea, etc. . Five, PET / CPP two-layer compound bag characteristics: moisture-proof, oxygen-proof, fragrance-preserving, heat-resistant; application: Cooking, Alcoholic Food, flavor food, etc. . Pet / PET / CPP three-layer compound bag characteristics: moisture-proof, high temperature resistance, easy sealing; Application: Powder packaging, soy sauce, liquid, shampoo and so on.