NAVIGATION
Platinum Rhodium foil, 0.05mm (0.002in) thick, 99.9% (metals basis)
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Copper Beryllium foil, alloy C172, 0.13mm (0.005in) thick
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Copper Beryllium foil, alloy C17200, 0.15mm (0.006in) thick
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Copper Beryllium foil, alloy C17200, 0.4mm (0.016in) thick
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Stainless Steel gauze, 150 mesh woven from 0.066mm (0.0026in) dia wire, Type 304
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Stainless Steel gauze, 400 mesh woven from 0.028mm (0.0011in) dia wire, twilled weave, Type 304
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