Heat exchangers [parts of machines]; valves [parts of machines]; boiler tubes [parts of machines]; water heaters [parts of machines]; steam engines; condensing installations; fittings for engine boilers; steam condensers [parts of machines]; steam engine boilers; flues for engine boilers; heat exchangers [parts of machines]; safety valves [machine parts]; turbines for energy production; intake systems for gas turbines; blowing machines for the compression, exhaustion and transport of gases; taps for machines; sprayers [machines]; electric pumps; fluid pumps; hydraulic pumps; pumps; self-regulating fuel pumps; motors and engines (other than for land vehicles); electric machines, machine tools, tools and apparatus for fastening and joining; suction machines for industrial use; filters for machines; steam/oil separators; electric soldering apparatus; machine couplings and transmission components (other than for land vehicles); generators; fuel economizers.

Heat exchangers; expansion tanks for central heating installations; thermostatic valves [parts of heating installations]; level controlling valves in tanks; dampers [heating]; heat regenerators; water heaters [apparatus]; central heating radiators; water conduits installations; heating installations; hot water heating installations; heaters for vehicles; incinerators; steam generators; steam boilers, other than parts of machines; electric heating filaments; heating elements; gas condensers other than parts of machines; water heaters; hot water boilers; boilers other than parts of machines; industrial boilers; heating boilers; laundry room boilers; flues; hot air ovens; electric heating apparatus; heating apparatus; steam accumulators; heat accumulators; regulating and safety accessories for gas pipes; evaporators; heat exchangers other than parts of machines; refrigerating machines; gas scrubbing apparatus; refrigerating apparatus and machines; shut-off valves in the nature of safety devices for gas appliances; valves [parts of plumbing installations]; flare stacks for use in the oil industry; fans [parts of air-conditioning installations]; air reheaters; faucets; dampers [heating]; cooling installations for liquids; air filtering installations; air-conditioning installations; sanitary installations; heating installations; gas generators; lighting installations; lighting apparatus and installations; heat generators; hearths; reheating stoves; melting furnaces; ovens; air filters for air conditioning; gas boilers; boilers; combustion chambers; flues for heating boilers; industrial burners; burners for the combustion of gas inside boilers; burners; gas lighters; lighters; feeding apparatus for heating boilers; regulating and safety accessories for water and gas installations.