Consumers are not likely to go to the factory to stare at the production process, but it can be a simple way to assess the quality of the product by means of a simple appearance. Hand caresses Mormon frame, panel, the corner, no SCART feeling, soft and delicate; then stand at the side of the door to welcome light to see the door of the paint surface is convex wave. Rely on these two methods, the consumer can buy a good look at the door.