The main structure of the external light billboard is iron frame plus spray painting, and some are covered with metal edges, plus spotlights. For example, the production of large billboards, such as billboards on the roof and column advertisements, is the heart of the billboards. It is unsafe to have a solid steel structure as support.

Blister character is a kind of acrylic processing technology. The main principle is that after the flat acrylic material is heated and softened, it is adsorbed on the surface of the mold by vacuum, cooled and shaped, and LED lights are installed. The energy consumption is much lower than the neon lights, and the luminous effect is obvious at night.

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