Raw Materials High carbon steel wire rod SWRH82B Technology Continued drawing with large deduction stranding then stabilizing treatment Characteristics High rate of yield strength and ultimate strength. low relaxation and stress relieved high coherence concrete. Standard ASTMA421-91, BS5896-1980, GB/T5223-2002. Application For highways, bridges, airports, docks, buildings, water conservancy projects, railway sleepers, and tunnels.