1,Excavator spare part,track link assy PC40-7 2,Brand:XJ 3,Material:40Mn2 4,Warranty: ... 6 months Excavator spare part,track link assy PC40-7 1,Product's Information BrandXJMaterial40Mn2TechnologyForging/CastingHardnessHRC 52-56 ... R220 R320 YC35YC85 SWE65 SWE70 Excavator spare part,track link assy PC40-7