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发帖数: 7349 | 1 Smartphones are pocket-sized vaults of precious metals and rare earths.
A typical iPhone is estimated to house around 0.034g of gold, 0.34g of
silver, 0.015g of palladium and less than one-thousandth of a gram of
platinum.
It also contains the less valuable but still significant aluminium (25g) and
copper (around 15g). |
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