ISOKERN

Metal prefabricated chimneys; metal prefabricated open chimneys; metal prefabricated parts for chimneys, namely, shaped structural parts for chimneys and chimney caps; metal prefabricated chimneys with and without insulating lining pipes; metal lining pipes for chimneys; prefabricated structural parts for chimneys, namely, metal ventilation shafts and cable shafts

Fireplace inserts in the nature of iron and pumice cassettes and chests powered by gas, oil, wood, or solid fuels

Non-metal prefabricated chimneys; non-metal prefabricated open chimneys; non-metal prefabricated parts for chimneys, namely, shaped structural parts for chimneys and chimney caps; non-metal prefabricated chimneys with and without insulating lining pipes; non-metal lining pipes for chimneys; prefabricated structural parts for chimneys, namely, non-metal ventilation shafts and cable shafts

Construction and renovation of chimney systems

Design of chimney systems