... , Middle East, Asi 1.Excavator brandKOMATSU, KOBELCO,HITACHI,KATO, SUMITOMO, CAT,HYUNDAI,DAEWOO,CASE,DOOSAN,VOLVO, JCB, etc. 2. According to ... can lasting the using timeFor digging the tough mud, clay with soft stone or loading the secondary tough stone and rock ... resist grinding and bendingFor digging the rubble, gravel and clay with tough stone, or loading the secondary tough stone and rock ...