PC Strand, PC Wire, Steel Pipes manufacturer / supplier in China, offering Low-Temperature Tough Low Relaxation Stress-Relieved Spiral Ribbed Indented PC Wire for Electric Poles, High-Bond-Strength, High-Tensile-Strength, Low-Relaxation Indented Prestressed Concrete Wire for Nuclear Containment, ASTM A421 3mm 4mm 5mm 6mm Steel Wire 1670MPa 1770MPa 1860MPa Indented PC Wire Low Relaxation Prestressed Concrete Steel Wire and so on.