... 2diameter:3.0mm-12.0mm 3tensile strength:1460-1860mpa Helical Rib(Spiral)PC Wire> Standard: GB/T5223-2002, ASTMA421, ASTMA648, BS5896 ... customers' requirements.> Diameter: 4.0mm - 12.0mm> Tensile strength: 1, 470 - 1, 860MPa>Yield strength : 1410, 1500, 1590, 1670MPa>Elongation : Lo ... .45 0.102.00-2.4040-50 low relaxtion helical rib pc steel wire high tensile