Vajra Shakti Flat Crimped Steel fiber (FCSF-6550) is low carbon & cold drawn steel wire fiber, it is a reliable, cost-efficient concrete reinforcement which provides temperature & shrinkage crack control, enhanced flexural reinforcement, improved shear strength and increase the crack resistance of concrete. It is designed to be easy to mix, place and finish. FCSF-6550 complies with Standard Specification for Fiber Reinforced Concrete and Shotcrete and ASTM A820.