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Metal doors; Metal railings; Door panels of metal; Metal roofing panels; Metal floor panels; Metal ceiling panels; Wall panels of metal; Fire-resistant panels of metal for building; Metal roof vents for access, smoke exhaust, fire ventilation, and airflow regulation in residential and commercial buildings; Metal ladders; Metal door kick plates; Metal fire doors; Metal access doors; Metal plumbing access doors; Metal roof hatches; Metal smoke vents; Metal access doors and panels for walls, ceilings, floors, and ducts; Metal corner guards and end wall protectors; Metal safety posts for use with fixed ladders; Metal watertight access doors; Metal airtight access doors; Metal security access doors; Metal floor doors; Metal floor hatches; Recessed metal access panels for installing in tile and drywall; Louvered and ventilated metal access panels; Metal access panels with glazing/view windows.