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 of 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