... and 40Cr 3.Color:black,golden,silver 1.Product: Komatsu Black Bucket Teeth Pin and Lock 2.Material:45# steel or 40Cr3 ... Track Link Assy,Track shoes, Bolt & nuts,Track bush & pin,bucket,bucket teeth,Adapters,Cutting edge and end bit,H-link rods ... ,Spring,Idler Yoke,Roller Guide,Bucket bushing,Bucket pin and so on excavator and bulldozer parts.5.Brand:Komatsu,Hitachi,Caterpillar,Kobelco,Summitomo,Hyundai ...