According to the different needs of customers, it is different from the general market process that requires the film layer to be placed on the inner layer and the protective paint is applied to maintain its durability. It is not environmentally friendly and has poor reflectivity. Xingyi Technology uses metal protection to achieve high For the effect of reflectivity, another way of adopting a dielectric film is to stack the reflectivity to 98% with a multilayer film stack.