Building materials of metal, windows of metal, gutters and roofing material of metal, roof coverings of metal, roofing of metal, tiles of metal, roof flashing of metal, chimney pots of metal, chimneys of metal, chimney cowls of metal

Ventilation hoods, ventilation hoods for laboratories, hot air ovens, filters for air conditioning, air filtering installations, air cooling apparatus, air purifying apparatus and machines, ventilation (air conditioning) installations and apparatus

Building materials not of metal, roof coverings not of metal, roofing not of metal, chimneys not of metal, chimney pots not of metal, mantlepieces, scantlings, roofing slates, shingle, hips for roofing