Spraying the current domestic production line leader, set dysentery, painting, which integrates automatic curing production lines, the former with the workpiece. Spraying to complete curing one-time, high production efficiency, product quality and stability, protective layer and the workpiece with solid, good surface finish. The brightly-colored, uniform thickness, quality and stability. Has excellent anti-aging and UV-resistant performance of external shocks, and anti-corrosion performance of good decorative flexible protective layer.