28.300Level 528.30Manufacture of agricultural and forestry machinery28.30001Manufacture of agricultural and forestry tractors28.30002Manufacture of tillers28.30003Manufacture of mowers, including lawnmowers28.30004Manufacture of self-loading and self-unloading trailers and semi-trailers for agriculture28.30005Manufacture of machinery and agricultural machinery for soil preparation, crop planting or fertilizer application: ploughs, manure spreaders, seeders, harrows, etc.28.30006Manufacture of harvesting machinery of agricultural and horticultural products: harvesters, threshers, sorting machines, etc.28.30007Manufacture of spraying machinery for agriculture28.30008Manufacture of other machinery for agriculture, poultry farming, bee-keeping, preparation of food and feedstuffs for animals, etc.; machines for cleaning, sorting, grading eggs, fruit, etc.