copper and iron copper and lead copper and manganese copper and nickel copper and silver copper and tin copper and zinc copper bar copper base copper based copper cable copper cables copper can copper canyon copper carbonate copper catalyst copper chloride copper clad copper coated copper coating copper coil copper coin copper coins copper color copper company copper complex copper complexes copper compound copper compounds copper concentrate copper concentration copper conductor copper conductors copper content copper core copper corrosion copper deficiency copper deposit copper deposits copper does copper electrode copper engraving copper extraction copper fittings copper foil copper has copper head copper heat copper hydroxide copper industry copper inuit copper iodide copper ion copper ions copper is used copper kettle copper layer copper levels copper material copper matte copper metal copper mine copper mines copper mining copper mining company copper mountain copper nickel copper nitrate copper or aluminium copper or aluminum copper or copper copper or nickel copper ore copper ores copper oxide copper oxides copper oxychloride copper parts copper phthalocyanine copper pipe copper pipes copper piping copper plate copper plated copper plates copper plating copper plumbing copper pot copper powder copper price copper prices copper producer copper production copper products copper project copper recovery copper ring copper river copper rod