Building materials not of metal, namely, building panels for decorative purposes; building panels not of metal, also coated; [ doors not of metal, also coated; ] ornamental elements not of metal for construction on interiors and exteriors in the nature of cut-out panels; [ refractory doors not of metal; refractory building panels, not of metal; ] Ornamental building panels not of metal featuring decorative cut-out designs for interior and exterior use