... ,showcase,sign panel,display rack,booth and so on. We are processing the outdoor metro advertising light box, ... metro light box , led metro light boxes,outdoor metro sign,and light box project for Shenzhen City. ... Screen(Sticker): light-proof sticker,2 years span outdoor,3 years span indoor Light source:t8 philip, ... to be broken,turn color 2 years span outdoor,3 years span indoor Hook:inner is metal ...