Heating system buildout, Heating systems installation, Pipework, Sanitary technical equipment emplacement, Sanitary technical works, Water heating systems, Welding, Welding works
Caldron emplacement, Caldron repairing, Caldrons, Construction of gas pipelines, Gas appliance emplacement, Gas appliance maintenance and repair, Gas appliance repairing, Gas caldrons, Gas equipment, Gas stoves; gas cookers, Gas water heters, Heating station maintenance, Heating stations, Oli caldrons, Sanitary technical works