7 Machine-driven devices for the chemical, glass, cement, and quarrying industries for ore and mineral processing and slag comminution, namely, systems comprising milling machines, crushing machines or grinding machines with separating machines and dedusting appliances, namely, milling machines and raw ore and mineral material, clinker and slag crushing machines in the nature of vertical milling machines and roller industrial machine presses and parts of the aforementioned milling and crushing machines for comminution of hard materials, coarse and fine comminution for the chemical, glass, cement, and quarrying industries for ore and mineral processing and slag comminution; separating machines in the nature of sifters for classifying and separating, and their component parts, namely, vertical sifters, drum sifters and air flow sifters for use in separating target materials for mixtures of materials and parts of the aforementioned separating machines for the chemical, glass, cement, and quarrying industries for ore and mineral processing and slag comminution; grinding machines and parts of the aforementioned grinding machines for comminution and classifying, for the chemical, glass, cement, and quarrying industry, for ore and mineral processing and slag comminution; dedusting appliances, namely, filters, cyclones, gas scrubbers, ventilators and suction hoods, and parts of the aforementioned dedusing appliances