Helix Pc Wire 1.Size: 3.0-9.0mm 2.Standard:ASTM, GB, ... .Surface: helix, plain, indented Name Dia. Tensile Strength Standard Helix Pc Wire 3.0mm - 9.0mm1470Mpa-1860MpaGB5223, AS1310, ASTM , BS 1. ... Type of Surface: Helix, Plane and indented2. Usage: This wire is mainly used for prestressed and post-tensioning tech-nology ... the standard, tensile strength, quantity and packing requirement. Helix Pc Wire