Nigeria
联系人 Orji Sunday
Lagos, Lagos
Gold is metallic, with a yellow colour when in a mass, but when finely divided it may be black, ruby, or purple. It is the most malleable and ductile metal; 1 ounce (*8 g) of gold can be beaten out to **0 square feet. It is a soft metal and is usually alloyed to give it more strength.
| 国家: | Nigeria |
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