The term 'Waste plastic, sorted' here refers to discarded plastic products generated from residential, commercial, and industrial activities, which are relatively purified plastic materials obtained through manual or mechanical sorting, cleaning, and removal of impurities and useless components. This type of waste plastic can be processed through crushing, melting, and pelletising to be used as raw material for recycled plastics in the production of plastic products, building materials, fibres, and fuel, achieving resource utilisation.