... 48-52HRC 4)Impact force:>=16J High quality model 320 excavator RC bucket teeth (1U3352RC) Advantages : Over 12 ... and adapters, side cutter, lock pins,etc. Material: Carbon steel, Alloy steel,etc, such as T1,T2,T3,T4.Machine type:Excavator, Loader ... ,Bulldozer,etc.For machines: Komatsu, ESCO,JCB,Hyundai,Daewoo,Hitach,etcHeat treatment: Quenching and tempering treatment ...