... to order The company's products of prestressed concrete strand and wire are mainly implemented GB/T5223-2002, GB/T5224- ... .Product TypeMajor SpecificationShapeHard drawn and PC smooth steel3.00, 4.00, 5.006.00, 7.00, 8.00, 9. ... 00 Prestressed spiral rib wire4.00, 5.006.00,7.00,8.00 prestressed concrete strand1×21×310.00, ... 15.24, 15.70, 17.80 Unbonded prestressed steel line1×79.50,12.7015.20,15.24,15.70 ...