11
Thermal oil heaters; high-pressure hot water installations; thermal exhaust air purification installations; waste heat boilers; installation construction components, namely combustion air preheaters and fireplaces, fittings for distributing, conducting and measuring gases or liquids and for operating and monitoring the flow of gases or liquids for heating technology, fuel engineering and fluid technology purposes; conveyor units, namely ventilators and pumps; solid fuel heating apparatus; electric heaters for thermal oil; heating systems for use on ships, secondary control circuits, namely prefabricated pumps with fittings for heating processes and heating and cooling processes; all the aforesaid goods for industrial uses
37
Renovation, assembly, repair and reconstruction of thermal oil heaters, high-pressure hot water installations, thermal exhaust air purification installations, waste heat boilers, secondary control circuits for heating and cooling processes, installation construction components, namely containers, combustion air preheaters, fireplaces, fittings and conveyor units, solid fuel heating apparatus, electric heaters, heating systems, pipelines; all the aforesaid services forindistrial uses
42
Design and planning of heating and fuel engineering installations, calculating pipeline stress, project supervision, assembly supervision and commissioning; all the aforesaid services for industrial purposes