... alloy steel 2)Weight:6.3kg 3)Hardness:48-52HRC 4)Impact force:>=16J komatsu PC300 (207-70-14151) excavator teeth bucket tooth ... as T1,T2,T3,T4.Machine type:Excavator, Loader,Bulldozer,etc.Brands: Caterpillar, Komatsu, ESCO,JCB,Hyundai,Daewoo,Hitach,etcHeat ... with excellent elongation and tensile strength, so very suitable for many different hard working conditions. Porducts pictures: Factory pictures: ...