Gutta-percha, elastic gum, balata and substitutes, objects made of these materials not included in other classes; sheets, plates and rods of plastic (semi-finished products); materials for packing, stopping and insulating; asbestos, mica and products thereof; flexible pipes not of metal; thermal and acoustic insulating materials

Building materials, natural and artificial stones, cement, lime, mortar, plaster and gravel; sandstone or cement pipes; road building products; asphalt, pitch and bitumen; mobile homes; monuments of stone; chimneys