... side light box 1 double side aluminum frame, 2 thickness is 35mm 3 Open from four sides, cover width is 40MM. double side ... light box1. double side Optimal aluminum alloy frame, Optimal aluminum alloy frame,Curved ... gloomy. 7. Can be made Right angle,curved angle,double-side and others. 8. The sizes Within 1000*2500MM can be ...