Black annealed wire Size:5.0mm-0.2mm T/S:350-550N/mm2 ... Libya,Boliva,Bahrain... CO,Test report.Soft,smooth,bright... Black annealed binding wire Feature:bright,soft,flexible to bind,smooth surface,good ... of Origin,Test report from Mill and other special files. black iron wireSurface Treatment: noneDiameter: 1.3mm-4.0mm Tensile Strength ... 9021#0.810.8130.8022#0.710.7110.70 soft black annealed binding wire