An array of powder-metal parts. Powder metallurgy was practiced long before ancient artisans learned to melt and cast iron. Egyptians made iron tools using PM techniques back in 3,000 B.C. The ancient ...
LONDON (Reuters) - At the edge of the desert in North Khorasan province in northeast Iran, near the country’s largest deposit of bauxite, sits an aluminium production complex that the government has ...
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