Futian District Wall Billboard Safety Inspection Unit

According to the "Technical Regulations for Steel Structures of Outdoor Advertising Facilities" and "Technical Standards for Inspection of Building Structures", newly installed outdoor billboards must undergo a safety inspection after 2-3 years of use; those that continue to be used after safety inspections Billboards, those with paint anti-corrosion can be used for another 2 years, and those with hot-dip zinc anti-corrosion can be used for another 5 years. Thereafter, the painted anti-corrosion billboards should be inspected every 2-3 years, and the hot-dip galvanized anti-corrosion billboards should be inspected every 5-8 years.