7 Compressed air distribution systems, essentially consisting of compressor pipes, compressed air pipes, fine filters, extra-fine filters and their parts, especially maintenance units such as filters, regulators, filter regulators, oil atomizers, filter pressure reducers; fittings for compressed air pipes and gas pipes, especially swivel nuts, reducing nipples, sleeves, T-pieces, elbows, plug-type couplings, union pieces, branch valves, selector valves, air diffusers, magnetic valves, cylinders, maintenance units, main valves, softstarters and distributors; hoses of rubber or rubber substitute material, and metal braided material.
11 Fittings for compressed air pipes and gas pipes, especially swivel nuts, reducing nipples, sleeves, T-pieces, elbows, plug-type couplings, union pieces, branch valves, selector valves, air diffusers, magnetic valves, cylinders, maintenance units, main valves, softstarters and distributors; hoses of rubber or rubber substitute material, and metal braided material.
