Industrial polymer packaging includes films, bags, and big bags made from PE and PP. Stretch film (LLDPE 17–23 microns) is used for pallet wrapping. Shrink film (PE, PVC, POF) is used for group packaging. Polypropylene bags (woven, laminated) with a capacity of 25–50 kg are designed for bulk materials. Big bags (FIBC) with a capacity of 500–2000 kg are used for bulk cargo. Stretch film: available in manual (20–23 microns) and machine (17–20 microns, pre-stretch 200–300%) variants. Big bags: SWL (Safe Working Load), safety factor of 5:1 or 6:1. Stretch film: the key parameter is pre-stretching; 200% means the film stretches to three times its length, saving material. Big bags: SWL tests (vertical load × safety factor 5:1), top lift test, and cyclic lifting tests. Certification is according to ISO 21898 standards. Documentation includes a quality passport and FIBC safety certificate.