... , galvanized. Because of the stability and durability that they are popular in the rocks , holders , uprights, frames ,store fixtures, counters, ... , frames, ect. About Acrylic display Acrylic means the plastic Because it is so popular in plastic. Such as: PC PE, PP, PS, PA ... Because of easy shaped, light and nice look, it is popular for signs, hygien food containers/holders, price tages, store display ...