Aluminum Production by Electrochemistry: The Hall-Héroult process. From a large graphite rod, Hall made a graphite crucible to line the clay crucible.
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قیمت را بگیریدA beverage can is a metal container designed to hold a fixed portion of liquid such as carbonated soft drinks, alcoholic beverages, fruit juices, teas, herbal teas ...
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قیمت را بگیریدAluminium (or aluminum; see spelling differences) is a chemical element in the boron group with symbol Al and atomic number 13. It is a silvery-white, soft ...
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