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The main raw material for plastic bags is polyethylene, which has a small particle shape and a mostly white appearance. Polyethylene, abbreviated as PE, is the world's largest production of thermoplastic, non-toxic, odorless, and in compliance with food packaging hygiene standards. Polyethylene film is lightweight and transparent, with properties such as moisture resistance, oxygen resistance, acid resistance, air tightness, and excellent heat sealing. It is known as the 'flower of plastics' and is the most widely used and important material for plastic packaging.
