Steel Fiber, Concrete Steel Fiber, Steel Fiber for Concrete manufacturer / supplier in China, offering Crack-Resistant POM Paraformaldehyde Plastic Synthetic Fibers for Uhpc Concrete, Crack Resistant Pan Polyacrylonitrile Synthetic Fiber for Concrete, High-Performance POM Fiber for Uhpc (Ultra-High Performance Concrete) Concrete Reinforcement Additive with Superior Tensile Strength and so on.