Undercarriage Parts 1.ISO9001:2008 2.Adopted Carbon Steel , High Carbon Steel and boron steel 3.OEM Parts Undercarriage Parts Material:High carbon steel or Boron steelHardness:280~320HBN or 440~520HBNCertification:ISO9001:2008tractor front blade cutting edge, Blade,End bits...We focus on offering bucket teeth, adapters, blades,cutting edge,end bits,power bolt and etc which applied to Construction ...