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Steel
A form of iron containing a small proportion of carbon and other elements. The carbon hardens and toughens the material, which is widely used in structural engineering. Steel is also used to make gates and railings, corrugated 'iron', nails, protective grilles, and in plastic-coated form is used as a roof covering. Stainless steel is an alloy of iron with chromium and nickel, used in sheet form as a cladding material, and also used for making nails for roofing.
Related Words Corrugated iron
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