Arbours not of metal; Concrete stair treads; Door frames, not of metal; Door panels, not of metal; Non-metal door frames; Non-metal doors; Non-metal safety doors; Non-metal windows and doors; Non-metallic windows; PVC roofing membrane; Railway sleepers not of metal; Revolving doors not of metal; Stair nosing not of metal; Stucco tiles; Wooden flooring