No need.

Now three certificates are integrated into one. It is enough to have factory building, equipment and business license. However, because some processes of sign production will involve environmental issues, some relevant certificates are required. The requirements vary from place to place. You need to go to the local industrial and commercial office. Consult with the sub-district office and other units.

Signs have the function of marking and warning. Signs mainly express their functions visually. For example: written communication, marks have symbolic, directional, suggestive and other functions.