D80 Track Link/chain Main Material:40Cr40Mn2 Pin hardness:HRC32-36 Fujian Tianzhong ... models as following:KOMATSUPC40-7,PC60-3,PC60-5,PC60-6,PC100-3,PC100-5,PC200-3,PC200-5,PC200 ... -2,EX300-3,EX300-5,ZX200,ZX210,ZX230,ZX240,ZAX200-6,ZX330CATERPILLARE55,E120B,E200B,CAT320,E320,E320C,E325,E330,E240.CAT312 ... ,R290-7,R335,R305MITSUBISHIMS180,BD2GQualification Certificate: KOMASTU Dozers parts D80 LINK