... in China Chopped steel fiber for concrete 1.ISO 9001 certificated 2.70% for Europe, Middle Asia, ... Steel Fiber Concrete,YB/T 151-1999 Steel Fiber for Concrete and ASTM AB820-90 Steel Fiberfor the Fiber-Rinforced Concrete. ... Package : 20kg/carton,20kg/bag,or according to your requirement. Chopped steel fiber for concrete ...