Building curtain walls made primarily of metal; Building materials, namely, composite panels composed primarily of metal; Building wall framing made primarily of metal; Chimney shafts of metal; Construction elements made of metal, namely, supports; Door frames of metal; Door panels of metal; Doors and windows of metal; Doors made primarily of aluminum and also including glass; Exterior metal shutters for building; Floor panels of metal; Frames of metal for building; Interior metal shutters; M...