... Dragon, the initiator who applies the spiral-deforming drawing technology to PC bar production. PC Steel Bar Description: small sized deformed ... steel bars for prestressed concreteMaterial: 30MnSiSize: 6.1mm, 7.1mm, 7.4mm, 8.3mm, 9.2mm, 10.7mm, 12.6mmStandard: YB ... -2.0 tonsPC steel wires and bars are mainly used to electric concrete pole, railway sleeper, PHC pile, precast concrete unit ...