6 Metal goods made of base metals or metallic alloys, namely shafts, machine bases, stands, rails, extruded aluminum rails having axial grooves, connectors for attaching rails and building components, enclosures namely, rooms and offices, doors, sliding doors, windows, hinges, handle support members for doors, windows, clamps, metallic edging, wire mesh, fasteners and fastening elements, namely, screws, bolts, butt-fasteners, clamping shoes and T-slot nuts for fastening rails and building components, mounting plates for basal support of rails, doors and enclosures, base plates for support and mounting between machine bases and rails and building components, transport plates with lifting eyes for lifting rails and enclosures, leveling feet, casters, connecting plates for providing additional support and attachment features between attached rails and building components, rollers and roller bearings for providing linear movement, latches, door stops, locks, door locks, and timing belt tensioners