Agricultural irrigation units; Faucets for pipes and pipelines being parts of sanitary installations; Heating systems for residential and commercial buildings comprised of boilers, valves, pipes, manifolds, control panel switches, and electrical wire, all sold as a unit; Heating systems for residential and commercial buildings comprised of boilers, valves, pipes, manifolds, solar panels, control panel, switches and electrical wire, all sold as a unit; Mixer faucets for water pipes; Mixer taps...