downloadable presentation image for B38-104 Exhibition Truss System. 10’x20′ Exhibit Truss Kits. Banner Truss Structure by edt exhibit and display truss and lds light design systems. This truss structure is perfect for hanging company banners and truss lighting. very durable and lightweight aluminum truss systems. dont settle for used aluminum truss when you can purchase an infinitely expandable one for the same price.