1. Legitimacy: each signboard needs to apply for legal documents such as business license and hygiene license to prove that the signboard hanging on the door is legal with conclusive evidence.
2. Unity: Each signboard should be designed and manufactured in accordance with relevant regulations, such as galvanized angle steel frame, aluminum alloy plate, aluminum plastic plate, solid word or luminous word, etc. , to ensure the unity and beauty of the door.
3. Space: Each signboard needs to meet the space requirements. For example, storefront signs should be set above the cornice on the first floor and below the cornice on the second floor. The height and overhang of storefront signs should be uniform, and the length should be the length of the unit building.
It should be noted that each signboard must comply with relevant regulations and standards, and cannot affect the operation of others and the appearance of the city. If you have specific needs, I suggest you consult relevant local departments or professionals for more accurate information and suggestions.