Industrial furnaces, in particular industrial burners of all kinds, in particular process burners, duct burners, recuperative burners, gas burners, regenerative burners, high temperature burners, lance burners and pilot burners; furnaces for industrial ovens and burners, driers and afterburning installations, and for thermal process technology installations; replacement parts for all of the aforesaid goods; flues and flue segments for industrial burners and furnaces; gas valves; hot gas gener...