NAVIGATION
Brass foil, alloy 260, 1.6mm (0.064in) thick
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Brass gauze, alloy 260, 100 mesh woven from 0.11mm (0.0045in) dia wire
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Bronze gauze, alloy 220, 80 mesh woven from 0.14mm (0.0055in) in dia wire
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Brass foil, alloy 260, 1.0mm (0.04in) thick
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Bronze gauze, alloy 220, 200 mesh woven from 0.053mm (0.0021in) in dia wire
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Nickel Copper foil, alloy 400, 1.0mm (0.04in) thick
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