The principle of coated aluminum plate is the same as that of stainless steel film or mobile phone screen film. The protective film of various materials is applied to the surface of the product, protects the surface and avoids surface scratches and oil stains. Yantai baodi copper&aluminum co.,ltd has a professional aluminum laminating machine, which adopts vacuum aluminum-plated film and pastes it on high-quality aluminum plate with high precision laminating machine. No bubbles, no degumming.All kinds of coated aluminum sheet products can be processed according to user requirements.