WPC door board production line Selection of different specifications for the wood-plastic twin-screw extruder, and wood-plastic for single screw extruder, and the corresponding vacuum, traction machines, horizontal cutting machine, expected over platforms such as auxiliary equipment. Replacement of a different mould can produce different specifications of the plastic sheet. Traction used a unique technology, steady work, good reliability, great traction. Increase the use of special vacuum stereotypes swirl cooling system, to facilitate cooling stereotypes, to meet the wide wood-plastic plate to the needs of the production features. Cutting sheet metal device with the horizontal speed traction to keep pace, design reasonable, stable operation, can automatically.