6 Mechanical door closers, door releases, door holders, door holder-stops, and door holders-releases; mechanical floor closers; mechanical gate closers; door opening and closing components made of metal, namely, bars, bolts, brackets, butts, bearings, nuts, metal ratchets, rings, shims, arm caps, screws and shells, door thresholds, threaded metal fasteners, spacer blocks, springs, replacement covers for door closers and operators, door closer rods and shoes, arm shoes, metal tracks, releasing apparatus, valves, and covers and arms, all for door and floor closers, holders, releases, holder-stops, holders-releases, closer-coordinators, and door controls; metal pivots and pivot sets for controlled opening and closing of doors, gates, and other entry points; metal plates for use with door holders, door closers, and door controls, namely, floor plates, door dress plates, cover plates, mounting plates, frame plates, back plates, filler plates, retrofit plates, and access plates; structural parts and fittings for all of the aforesaid goods