Metal door handles; Metal pet doors; Industrial water tanks of metal; Portable metal levees; Transportable greenhouses of metal for household use; Metal portable stairs; Metal barriers for pedestrian traffic control; Recreational vehicle stabilization system comprised of a pair of adjustable metal tubing braces that are placed against each side of the vehicle frame and are connected with a chain and are tensioned with a chain tensioner; Safety deposit boxes; Step ladders made of metal; Alumin...