6 METAL INTERIOR OFFICE PARTITIONS; FOOT GRILLES AND MATS PRIMARILY MADE OF METAL; EXPANSION JOINT COVERS AND SEALS PRIMARILY MADE OF METAL; METAL EXTERIOR SUN SHADES; METAL DECORATIVE AND PROTECTIVE GRILLES, SCREENS, PANELS, SHEETS, AND LOUVERS FOR USE AS INTERIOR AND EXTERIOR BUILDING WALL AND CEILING FACINGS, EQUIPMENT SCREENING AND SPACE PARTITIONING; METAL ROOF GRAVEL STOPS, FACIAS, COPINGS, AND SOFFITS; METAL TRENCH FRAMES AND COVERS; METAL GRILLES, LOUVERS, VENTS AND PENTHOUSES FOR VENTILATION OPENINGS IN DUCTS, WALL, ROOFS AND DOORS,