Helix PC Steel wire: 1.Size: 3.0-9.0mm 2.Standard:ASTM, ... indented, plane Name Dia. Tensile Strength Standard Helix PC Steel wire 3.0mm - 9.0mm1470Mpa-1860MpaGB5223, AS1310, ASTM , BS 1 ... , overhead crane beams industrial and civil prefabricated concrete floor, wall board, tubular piles, powers and unclear power station, etc ... tensile strength, quantity and packing requirement. Helix PC steel wire