price of copper per kilogram

{"cid":"91138183","title":"astm-uns n04400 good price nickel copper alloy monel 400 bar from Chinese factory","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/8a\/bc\/2894e0b71fcb3f702575631f8d83-200x200-1.jpg","attrs":{"Price":"negotiable","Brand Name":"TOBO\/TPCO\/TISCO\/VALIN\/METAL","Model Number":"1.4835 Stainless Steel Seamless Pipe","Minimum Order Quantity":"0.5-1 tons","Delivery Time":"15days->","Certification":"ISO\/PED\/TUV\/SGS\/LR\/BV","Place of Origin":"China\/Japan\/Germany","Payment Terms":"T\/T, L\/C, Western Union, MoneyGram","Supply Ability":"7500 tons per year","Packaging Details":"in plastic bags then in bundles","Standard:":"DIN, ANSI, ISO, GB, JIS","Application":"Fluid pipe,Structure Pipe","Surface":"Annealed & Pickled, Bright Annealing, Polished","Types:":"Seamless","Thickness":"0.5-100mm","Outer Diameter":"6-813mm","Material":"Carbon Steel,Stainless Steel,alloy steel,Brass,copper","Sample":"Provided,Free,Available free within 7days"}}

{"cid":"91200962","title":"AMS 3003 Aluminium Alloy Billet Mild alloy Steel Round Bars","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/93\/d2\/b78d4a2205ba4eb54bd860ebab7a-200x200-1.jpg","attrs":{"Price":"To be negotiated","Brand Name":"TISCO BAOSTEEL","Model Number":"Stainless Steel Round Bar","Minimum Order Quantity":"1 ton","Delivery Time":"10-15 days after advance payment","Certification":"SGS BV","Place of Origin":"China","Payment Terms":"L\/C, T\/T","Supply Ability":"8,000 ton per month","Packaging Details":"Kraft paper, wooden case, packaging according to customer requirements","Name":"Aluminum Billets 6063 Mill Finish Aluminum Billets 3003 Price Per Kilogram Aluminum Round Bar","Thickness":"0.5 - 6 mm,1 - 8 mm,0.1,10 - 60 mm,2 - 40 mm","Standard":"ASTM,DIN,GB,API,BS","Section shape":"Round","Technique":"Hot Rolled,Cold Drawn,Seamless","Length":"1--12m,1m-6m,as your request,6m-12m","Surface treatment":"Black\/Peeling\/Polishing\/Machined,black or bright,hot rolled balck bar or cold drawn bright bar","Diameter":"12mm-650mm,6-350mm,as your requires"}}