Liuzhou ZF,shanghai CAT,Hangzhou Advance.ZF4WG200,WG180,C6121,TD226B,all kinds ... ),STEERING SYSTEM (STEERING UNIT, STEERING PUMP.), AXLE(SDLG AXLE, MERITORY AXLE, ZF AXLE), TRANSMISSION(SDLG TRANS, HANGZHOU ADVANCE, HANGCHI TRANS, ZF TRANS), WORKING EQUIPMENT (BUCKET, BOOM ...