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mechanical engineering - How does the shape of CPU/GPU fan blades affect their performance and loudness? - Engineering Stack Exchange
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920326-7 12" Tubeaxial Fan Blade, Number of Blades 4, For Use With Fan No. 9217227 | Imperial Supplies
DAYTON 60 in Tubeaxial Fan Blade, Number of Blades 6, For Use With Fan No. 5JKE5 - 5JKE9|166304 - Grainger
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