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beryllium sold as bars, bricks, nuggets, tubes, and as parts of various configurations, used in manufacturing in the aerospace industry, instruments industry, and atomic energy industry; tantalum sold as bars, nuggets, wires, powder, rolled products, used in manufacturing, in the aerospace industry, instruments industry, and atomic energy industry; [ aluminium-beryllium and copper beryllium masters alloys, sold in the form of nuggets and grains, tantalum-tungstic alloy sold in the form of nuggets, bars, wires and sold as rolled material ]

[ magnesium fluoride used as an addition to the electrolytic bath in the manufacture of metallic aluminium, as a component of hardening compositions for treatment of cutting instruments before hardening; ] radioactive fissionable compositions