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A rareearth element ... (the similarity of the rareearth metals'' chemical properties made their separation ... the Indian and South African deposits still ...

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Lisbon started to import and refine raw sugar, and, in ... methods may be used. ... "Squeezing All the Sweetness Out of Sugarcane—and More," Chemical ...

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Oct 10, 2011· Ends with melting a 999 fine gold bar. ... Gold Refining Complete Process for the Home Refiner sreetips. ...

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