Crushing machines for industrial purposes and shredding machines, electric, mechanical and hydraulic beaters for metal forming in automotive industry and for crushing medium-hard rock, wet limestone, wet marl, clay, chalk, gypsum and similar raw materials in cement and mining industry, in the nature of form presses and hammer crushers being machines; mills in the nature of steel mills and hammer mills and colloid mills for milling and wet grinding of solid materials, being machines; sieving machines and sieves in the nature of machines for use in industrial plants; sifters for industrial use in mining systems, cement plants, coke plants, steel plants, being machines and their replacement parts

Mining work in the nature of ore excavation and extraction medium-hard rock, wet limestone, wet marl, clay, chalk, gypsum and similar raw materials in cement and mining industry; installation, maintenance and repair of machines, namely, of equipment and machines for use in mining, open-cast mining, quarrying, ore or coal mining, demolition and road building, industrial machines and manufacturing installations; quarry works; refurbishing of worn or partially destroyed machines