The PVC/WPC door frame production line is an automated extrusion equipment system used for manufacturing wood-plastic composite materials (WPC) and polyvinyl chloride (PVC) door frame profiles. It is widely applied in the fields of interior decoration, building doors and windows, and waterproof door panels. This production line uses twin-screw extrusion technology to mix plastic powder with wood fibers, directly forming door frame profiles with wood grain texture, waterproof, pest-resistant, and without the need for painting.