Road traffic signs generally consist of a sign base plate, a sign surface, a pillar, a fastener, and a foundation. Brief description of sign material processing: 1. The material is made of high-quality aluminum alloy plate, engineering grade or high-strength reflective film, which has a good reflective effect at night. 2. According to the national standard size, cut aluminum plate and reflective film (square, round). 3. Wash the aluminum plate, polish the aluminum plate with a white clean cloth to make the surface of the aluminum plate rough, clean it with water and dry it. 4. Use a hydraulic press to stick the reflective film on the cleaned aluminum plate for later use. 5. Computer typesetting patterns and text, and use a computer engraving machine to directly print the pictures and text on the reflective film. 6. Use a squeegee to press and paste the carved patterns and silk-screened patterns on the aluminum plate of the base film to form. Sign boards are installed at appropriate locations in the entrance and exit, parking lot, and on the road to guide vehicles to drive correctly. Traffic signs are provided with prohibited signs, indication signs and other signs.