6 Hinge pin and spring-loaded floor and overhead checking door closers of metal; metal door pivots; exit door control devices in the nature of metal panic latch bars for exit doors, metal door strike plates, metal latches, metal rods, non-electric cables of metal, metal bolts and metal levers for keeping doors closed; pedestrian traffic control guide rails in the nature of metal barriers and metal guard rails; metal architectural trim hardware and structural parts therefor, namely, metal hinges, metal door knobs, metal door levers, metal latch bars, metal door strike plates, metal latches, and metal bolts; accessories for automatic electric door openers, namely, metal hinges, metal door knobs, metal door levers, metal latch bars, metal door strike plates, metal latches, and metal bolts