buildings and building materials; namely, doors, [ windows ] and parts therefore, [ shutters, fences, and window ] and door units made from polyvinyl chloride (PVC); namely, [ horizontal and vertical sliding windows, in and out swinging windows, angle-bay, bow and box-bay windows, fixed windows, roof and skylight windows, pivoting windows, ] sliding patio doors, in or out swinging doors; [ prefabricated sun rooms, conservatories and solariums; garden fences, exterior building panels and walls...