Helix PC Steel wire: 1.Size: 3.0-9.0mm 2.Standard:ASTM, GB, BS, JIS 3.T/S:1470Mpa-1860Mpa 4.Surface: helix ... , plane Name Dia. Tensile Strength Standard Helix PC Steel wire 3.0mm - 9.0mm1470Mpa-1860MpaGB5223, AS1310, ASTM , BS 1. Type of Surface ... , wall board, tubular piles, powers and unclear power station, etc...3. Enquiry please let us know the standard, tensile strength, quantity ...