... , same zinc levels 7.widely applied to the construction of prestressed concrete structure,bridge,power stations,highways,high-rise building ... ,ground anchorage,etc. 8.strand is of straight, soft, small residual stress and no s-shape after expansion ... 1670MPa6yield strengh≥1410MPa7extensibility>4.0%(gauge length L=250mm)8modulus of elasticity2.0(+0.1,-0.05)× 105 MPa9alternating bending ...