1) Low relaxation plain surface pc steel wire 2) Standard: GB/T5223-2002, BS5896-1980, ASTMA421-1991, AS1310-1987,etc. 1) Low relaxation plain surface pc steel wire2) Standard: GB/T5223-2002, BS5896-1980, ASTMA421-1991, AS1310-1987, JISG3536-1994, EN10138-2004 etc.3) Diameter: 4-10mm4) Tensible strength: 1470, 1570, 1670 1770, 1860Mpa(N/MM2)