... Nylon/PE Industrial Use Shopping Feature Biodegradable Stand-up pouch liquid detergent packaging bags are made by PET, PE milk white, BOPP ... , NY,AL, and 2-layer or 3-layer composite.liquid detergent stand-up pouch: 1) Material: PET/PE milk, BOPP/CPP ... ) Ability to seal through contamination8) Printing: according to customers' requirements liquid detergent packing bag, plastic packing