Steel Fiber, Concrete Steel Fiber, Steel Fiber for Concrete manufacturer / supplier in China, offering Polyacrylonitrile (PAN) Fibers for Concrete Reinforcement High Tensile Strength, Crack Resistance, and Durability, Eco-Friendly AAC Blocks Used Interior Exterior Wall Panels, POM Fibers with Customizable Aspect Ratio Ideal for Injection Molding and 3D Printing Applications and so on.