Our company is the biggest manufacturer of excavator parts in north of China,mainly specialized in producing slewing bearing,bucket tooth,tooth pin,tooth holder,bolt,seal ring,track link,track shoe,track roller,idlers,sprocket rims,which apply to following brands : KOMATSU/HITACHI/DOOSAN/HYUNDAI/KOBELCO//KATO/CATERPILLAR/SUMITOMO,etc.