PVC plastic granules commonly use molding processes such as extrusion, injection, and calendering: extrusion can produce pipes and profiles (such as drainage pipes, door and window profiles), injection can produce various accessories (such as pipe fittings, toys), and calendering is used for the production of films and sheets. They have a wide range of uses, including construction pipes, door and window frames, insulation layers for wires and cables, as well as food packaging films, medical catheters, and daily necessities (such as slippers, storage boxes). Some models can also be foamed into foam boards, which are suitable for multiple scenarios and have high cost performance.