... 0.30mm, 0.25mm, 0.20mmWeight/spool: 3 kg, 5 kg, 7 kg, 15 kg, 20kgTensile strength: 1000 N/ ... waste production with copperspecification:Copper WIRE SCRAP, (Millberry) 99.78% at a purity of 99.78% min. 99.78%Max. COPPER: 99, 9% CARBON: 0 ... .25, 0.30mm COMMODITY: Copper Wire Scrap, (Millberry) 99.78% SPECIFICATIONS: Copper Wire Scrap, (Millberry) 99.78%pictures: High purity Copper Scrap Manufacturer 99.9%