Processing and analysis
Ceiling surface treatment are: roll coating, painting, spraying three kinds of film best.
Marketing has many ceiling surface treatment called plastic mulch, but is a kind of domestic films, after forming the laminating film. There is also a Pearl light, looks and film, but it's not a film at all, it just in the electrostatic spraying, the advance in spray paint and Pearlescent powder. This plate prone to chromatic aberration, generally after two or three years will change color, paint.
Primer and paint roller plate is positive, painted on the back of the composite metal plates.