7 [ Metal, wood, plastics working machines for production, repair and dismantling of land, air and water vehicles, for the chemical industry, for agriculture, for mining, for the textile industry, for the food industry, for the beverage industry, for the construction industry, for the packaging industry; machine tools for metal working and cutting; motors other than for land vehicles, namely, planes and boats; motor parts for motors of all kinds, namely, motor starters, machine cylinders, machine cylinder heads, machine pumps, camshafts, pistons, fly wheels, bearings, valves, exhausts for engines, injectors; air filters for motors and engines for cleaning and cooling air, spark plugs for diesel engines; machine coupling and transmission components except for land vehicles, namely, clutches for machines other than for land vehicles, power-operated jacks; motor-driven lawn mowers; agricultural implements other than hand-operated, namely, cultivators, harvesters, disk harrows and seeders ]