YIJIANG specializes di manufaktur crawler dump treuk bagian pikeun MOROOKA, kaasup roller lagu atawa roller handap, sprocket, roller luhur, idler hareup jeung lagu karét. Trek karét cocog sareng modél Morooka kalebet MST300, MST600, MST800, MST1500, MST2200, sareng MST3000, jsb.