... .25mm, 0.20mm,0.15mm,0.10mm Weight/spool: 3 kg, 3.5kg,5 kg, 7 kg,15kg, 20kg Material : quality brass wireWire diameter: 0 ... .30mm, 0.25mm, 0.20mm,0.15mm.0.10mmWeight/spool: 3 kg, 5 kg ... , 7 kg, 15 kg, 20kgTensile strength: 1000 N/mm2, 900 N/mm2 ...