The production line for door and window profiles uses PVC powder to manufacture various plastic door and window profiles, decorative profiles, etc. Referring to the latest foreign technology, the unit has been optimized and designed with advantages such as uniform plasticization, high output, and long service life. The unit consists of a conical twin-screw extruder, a vacuum shaping table, a traction machine, a cutting machine, a laminating machine, a flipping rack, etc. The main engine adopts imported DC/AC variable frequency drive, the cutting machine adopts imported PLC control, the temperature control instrument uses products from Japan's RKC company, and the auxiliary vacuum pump and traction motor use high-quality products for easy maintenance.