Steam superheaters and reheaters, steam desuperheaters, tubular water screens for furnace walls feed water heaters, condensers, oil stills, fuel oil heaters and other tubular apparatus for the exchange of heat between fluids regulator valves for steam engines, and soot blowers and other boiler cleaners, steam separators, steam dryers, air dryers and cleaners, compressed air cooling and re-heating apparatus, anti vacuum valves for steam engines and sperheater drain valves and including in all cases, parts of such goods all being machinery or parts of machinery,

Power stations and components of power stations including furnaces, heating and cooling installations, heat accumulators, chimneys, steam generating installations; all other goods in this class

Construction and repair of power stations and components of power stations including construction and repair of furnaces, heating and cooling installations, heat accumulators, chimneys, steam generating installations; all other services in this class