What materials are commonly used in billboards nowadays?

At present, the advertising industry is a very concerned field, and advertising materials are the focus of the advertising industry. At present, the common problems in the advertising field are: advertising materials can be used for billboards, car body advertisements, murals, signs, scaffolding coverings, inflatable billboards, window display pictures, banners and posters, stage background, mobile plane display, wedding photography, posters, indoor display board advertisements, engineering and garden effect drawings, advertising display drawings, commerce and commerce. Consumables for digital express printing include: PP film: high gloss, bright color, high image resolution, good anti-aging and tensile properties, including matte and glossy; Cold-mounted film: PVC material, the main function is to protect the picture. Photographic paper: high gloss, bright color, high image resolution, good anti-aging performance, there are two kinds of matte and glossy; Self-adhesive (back adhesive): high gloss, bright color, high image resolution, self-adhesive on the back, easy to paste, matte and smooth. ? The advertising materials that should be used include: back-sprayed light boxes: high gloss, bright colors, high image resolution, and better expression of polished pictures, including matte and smooth surfaces; Fully transparent film: good transparency, suitable for projection film, composite painting, transparent hanger, etc. , there are two kinds of dumb face and glossy surface; Fully transparent adhesive: good transparency, self-adhesive on the back, easy to paste, suitable for partition and beautification of glass windows, there are two kinds of matte and smooth; Canvas: Canvas base material is adopted, which supports the reproduction and output of high-precision crude oil painting, and the image is non-reflective; Silk cloth: high gloss, bright colors, high image resolution, the picture has the luster of silk cloth, and no film is needed.