software for electronic test equipment for audio frequency signals

Metallic building materials, namely, bindings of metal, boards, bolts, brackets of metal for buildings, metal joinery fittings for buildings, prefabricated buildings of metal, casement windows, cladding for construction and building, door bolts, door cases, door closures, door fittings, namely, keys and key cylinders, hinges, door frames, door handles, door panels, doors, door stops of metal, fences, fittings of metal for windows, namely, metal window sills, flashing of metal for buildings, g...