19 Construction materials in the nature of nonmetal composite panels composed primarily of vinyl and polyurethane; Athletic flooring; Athletic flooring in the nature of dance flooring made of vinyl and polyurethane; Construction materials, namely, nonmetal flooring materials; Construction materials, namely, nonmetal materials for constructing floors; Flooring comprised of vinyl and polyurethane adapted for dance and physical fitness activities; Nonmetal floors; Nonmetal floors comprised primarily of vinyl and polyurethane for dance floors, sports arena floors, and gymnasium floors