I-YIJIANG igxile ekukhiqizeni izingxenye zamaloli okulahla ama-crawler e-MOROOKA, okuhlanganisa i-track roller noma i-roller engezansi, i-sprocket, i-top roller, i-idler yangaphambili kanye nethrekhi yerabha. Amathrekhi enjoloba ahambisana namamodeli e-Morooka afaka i-MST300, MST600, MST800, MST1500, MST2200, ne-MST3000, njll.