1.OEM quality 2.material;20CrMNTi 3.delivery in time We are in the ... ,KOBELCO and so on. For example,deceleration assembly,excavator gears,slewing bearings,excavator deceleration assembly,crane parts,spreader parts,sprocket series,bucket series ... ,teethse series,track bolt and nut series,idler series,track roller series,etc.FOR more ...