(1) - Design and construction of heat generating power plants.
(2) - Design and construction of thermal power plants.
(3) - Heat generating power plants consisting essentially of feeding equipment for the furnace namely, stokers; furnaces; steam or hot water boiler plants; dust extractors; and slag removal equipment, namely, ash dischargers, and parts therefore.
(4) - Thermal power plants substantially consisting of charging devices for the combustion system, combustion system, steam or hot water boiler system, dust removal system and slag removal equipment, namely, ash dischargers as well as parts thereof.
(5) - Thermal power plants substantially consisting of charging devices for the combustion system, combustion system, steam or hot water boiler system, dust removal system and slag removal equipment, namely, ash dischargers as well as parts thereof.
(6) - Design and construction of thermal power plants.
(7) - Design and construction of heat generating power plants.
(8) - Heat generating power plants consisting essentially of feeding equipment for the furnace namely, stokers; furnaces; steam or hot water boiler plants; dust extractors; and slag removal equipment, namely, ash dischargers, and parts therefore.
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