1) Post-tensioned unbonded prestressed concrete strand is suitable for cast-in-place concrete of long-span and wide buildings, large load prefabricated beam and other construction. It has the characters of no need room for future expansion and ground-on, and is convenient to use, material saved, and easy to bend 2) The PC strand is coated with corrosion-resistant lubricating grease and polyethylene sheathing 3) Construction: 1 x 7 4) Diameter: Φ15.24mm, we can supply other dimension upon customer's requirements 5) Standards: JG 161, ASTM A416-98 or according to customer's requirements