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    Aluminium Wikipedia

    Aluminium or aluminum is a chemical element with symbol Al and atomic number 13. It is a silvery white, soft, nonmagnetic and ductile metal in the boron group.By mass, aluminium makes up about 8% of the Earth's crust; it is the third most abundant element after oxygen and silicon and the most abundant metal in the crust, though it is less common in the mantle below.

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    Evolution of Blast Furnace Iron Making ispatguru

    Evolution of Blast Furnace Iron Making. The origin of the first smelting of iron is concealed in the unrecorded history of human civilization. The first evidence of iron implements being used in ancient times actually comes from Egypt where an iron tool was

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    Metallurgy Extractive metallurgy Britannica

    The zinc blast furnace also is a sealed furnace, with a charge of sintered zinc oxide and preheated coke added through a sealed charging bell. The furnace is rectangular, with a shorter shaft than the iron blast furnace. A blast of hot air through the tuyeres provides oxygen to burn the coke for heat and to supply carbon monoxide reducing gas.

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    Roman technology Wikipedia

    Roman technology is the engineering practice which supported Roman civilization and made the expansion of Roman commerce and Roman military possible for over a millennium (753 BC 476 AD).. The Roman Empire was one of the most technologically advanced civilizations of antiquity, with some of the more advanced concepts and inventions forgotten during the turbulent eras of Late Antiquity and ...

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    history of technology Summary & Facts Britannica

    History of technology, the development over time of systematic techniques for making and doing things. The term technology, a combination of the Greek technē, art, craft, with logos, word, speech, meant in Greece a discourse on the arts, both fine and applied. When it first appeared in ...

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    What you need is what we can do! In the future, Xinhai will continue to rely on three big supporting "technology, talents, management", adhere to the international development strategy, and concentrate on providing customers with modern, efficient, energy-saving mine overall construction and operational solution, to create international leading enterprises in mining industry.