... 40Cr 3.Color:black,golden,silver 1.Product: Bucket Teeth Pin and Lock for Doosan Excavator 2.Material:45# steel or 40Cr3. ... Treatment:(1)Flange--Black(2) Electrophoresis--Black,the surface ... .Brand:Komatsu,Hitachi,Caterpillar,Kobelco,Summitomo,Hyundai,Daewoo,Volvo,Samsung,Sunward,Kato,Mitsubishi,Ihisce and so on.6.Product ...