... carbon steel wire 2.iron wire rod 3.Oil painted against rust 4.low cost and economy 5.Black drawn wire black annealed wire is produced ... coils 400~500 Kg or by Z2, Z3 coilsTypes: Black soft annealed wire & Bright soft annealed wire .Diameter: BWG16, 18#, 19#, 20#, 22#, are the most ...