1.ISO 9001 certificated 2.70% for Europe, Middle Asia, America market 3.Have the most number of steel fiber machine in china Steel fiber with hooked end1.Diameter:0.4mm-1.0mm2.Length: 25mm-60mm3.Material: low carbon steel wire4.Feature: excellent tensile,high tenacity,against cracking,impact and fatigue5.Uses: highway road surface,tunnel,building,airport road surface and so on . steel fiber with ...