First: badges tagged with warning role, badges to show that it is mainly through visual effects. For example: Text convey mark is symbolic, direction, suggestive and more. Text style can show personality, background, meaning. Together form a symbolic representation of the mark and tectonic significance. Second, a nameplate information transmission medium, it has advertising, warning function. Non-metallic materials: acrylic, color board, PVC, glass, wood and other badges. Metal Material: stainless steel, iron, zinc alloy, brass, aluminum and other badges. Commonly used metals are copper, iron, aluminum, titanium, stainless steel. Common processes are polishing, grinding, grinding charcoal, sand blasting, plating, oxidation, screen printing, oxidation dyeing, medicine white, die casting, gilding, imitation gold. Metal badges can be used alone, can also be used depending on the application plus a combination of marble or wooden tray bottom.