... , 6.00mm, 6.25mm, 7.00mm, 8mm, 9mm3.Type of Surface: Helix(screw|), Plain, Indented.4.Standard:GB/T5223-2002, ASTM ... customers' requirements.5.Tensile Strength:1470Mpa-1860Mpa6. Usage:Low relaxation wire used for prestressed steel structure, prestressed and post-tensioning technology in ...