slidable and expandable room and compartment assemblies for recreational vehicles and trailers; components for recreational vehicles and trailers having living quarters designed for accommodation namely, slide out frames, slide out motors, room seals, slide out wear bars, slide out floor pans, rollers, slide out brackets, electronic controllers; structural frames and suspension components of slideable and expandable rooms for recreational vehicles and trailers; manual and power-operated jacks and stabilizers sold as a component of recreational vehicles and trailers