Burners, in particular for heating, retaining the heat, processing and melting of materials, in particular glass and metal, special burners for coating work pieces or manufacturing tools with a protective, sliding or soot layer; gas supplying apparatus/equipment, included in this class, in particular for burners.

Gases, and gases in liquid or soluble form, used as welding-, burning-, cutting- and protective gases, as gases for sooting of metals and as reducing gases, in particular hydrocarbons, hydrocarbon compounds, acetylene, oxygen, oxygen containing gases, nitrogen, hydrogen, carbon dioxide, carbon monoxide, nitric oxide, ammonia, all rare gases as well as compounds of all aforementioned gases

Solid, liquid and gaseous fuel

Metal working, particularly welding and annealing and soothing of metal work pieces, carrying out of experiments for drawing up of reports in the field of metal working