Metal building materials, namely, closures; air transfer elements, namely, ventilating ducts for commercial or industrial use; transportable buildings; posts; non-electric cables and wires of common metal; ironmongery; clamps; tubes and pipes, namely, flexible, semi-flexible and rigid tubes and pipes; pipe couplings and joints; tubes in the form of sleeves, muffs, flanges, flange sleeves and flange muffs; ventilation installations; metal chimneys and metal exhaust ducts; weatherproof louvers and weather protection bars

Non-metal building materials, namely, rigid, semi-flexible and flexible pipes; tubular noise suppressors as parts of ventilation installations; chimneys and gas ducts; weather protection bars; exhaust fume ducts; non-metal rigid pipes, namely, pipe armatures for ventilation to measure and regulate the flow, discharge and distribution for ventilation; temperature shrink bands; non-metal couplings for use with pipes and pipe tubes; casings, muffs and flanges

Consulting services in the field of engineering, technical conception and planning; technical consultation in the fields of ventilation, exhaust, plug, connect, low energy technology and passive house technology; research and development in the fields of ventilation, exhaust, plug, connect, low energy technology and passive house technology; and designing computer programs for others in the field of data technology