Manufacture of metal fasteners (nails, rivets, tacks, pins, staples, washers and similar non-threaded products and nuts, bolts, screws and other threaded products)
Manufacture of non-motorized bicycles and other cycles, including cycle-rickshaws, (delivery) tricycles, tandems, children���s bicycles and tricycles, baby carriages
Operation of sand or gravel pits, basalt / porphyry, clay (ordinary), crushing and breaking of stone for use as a flux or raw material in lime or cement, manufacture or as building material, road metal or ballast and other materials for construction