... ,external house, public places. Nano Self-Cleaning and Anti-Bacteria CoatingIt use for plastic, metal,wall tiles surfaces ... and skin hypersusceptibility, anti-ultraviolet, radiation protection.(Fluorescent,Photocatalyst).Nano-TiO2 Coating Used for plastic Lamp, Plastic fan, wall ... tiles,board and etc(Photocatalyst) Nano Self-Cleaning and Anti-Bacteria Coating