make a list of five articles used at home and school which are made up of metals or alloys. Write their composition In a tabular form.
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Article:-Door Knob,Coins,Utensils,Bicycle frame,
Metal used:-Bronze,Copper-nickel alloy,Stainless steel,Aluminium alloy,
Composition:-90% copper + 10% zinc,25% nickel + 0.05-0.4% manganese + copper,18% chromium + 8% nickel + 0.85 carbon + >50% iron,0.1-0.5% scandium + aluminiumScissorCarbon steel1% carbon + iron
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