ECX

flashings for buildings; flashings and frames including curb flashings for roof windows and skylights; parts and fittings therefor, sold as a unit; and flashing parts; namely, clips, nails, and screws, all made wholly or predominantly of metal

ready mountable building materials and elements; namely, curbs for roof windows and skylights; parts and fittings therefor, sold as a unit; gaskets and sealings, all not being of metal