ASTM A421 High Tensile 1670 MPa PC Wire 1670 MPa PC Wire 4.8 MM Concrete Steel Wire Description: pre-stressed concrete for high tensile low relaxation steel wire, stress-relieved steel wire,pre-stressing steel wire, high carbon steel wire for pre-tensioning. Application:railway sleeper, subway track board, concrete piles,cement electricity poles, beams, girders, slabs, hollow floor board, double-T board, PHC, PPCP. Prestressing Concrete Steel Wire About 1 MT/Coil for Exporting Prestressing Concrete Steel Wire The Productiong Lines for Prestressing Concrete Steel Wire Company Photos for Prestressing Concrete Steel Wire Contact Information for Prestressing Concrete Steel Wire Robin Wang In…