Nuclear reactors, boilers, machines, apparatus and mechanical devices;�parts of these machines or apparatus machines and apparatus for classifying, screening, separating, washing, breaking, crushing, pulverizing, mixing, kneading or rubbing, soil, stone or other solid mineral matter (including dust
"1. porous concrete - aerated concrete building blocks of cellular concrete wall, small, not reinforced, autoclaved, are the system of artificial stone groove - comb made from basic ingredients - sand, cement, lime, gypsum. trademark" "yu-tone", "model d500 block size 600mm * 200mm * 400mm - 34.56 m