... major products.Product TypeMajor SpecificationShapeHard drawn and PC smooth steel3.00, 4.00, 5.006.00, 7.00, 8.00, 9.00 ... .007.00, 8.00 Prestressed spiral rib wire4.00, 5.006.00,7.00,8.00 prestressed concrete strand1×21×310 ... line1×79.50,12.7015.20,15.24,15.70 PC Strand