YIJIANG spesialisasi ing manufaktur bagean crawler dump truck kanggo MOROOKA, kalebu roller trek utawa roller ngisor, sprocket, roller ndhuwur, idler ngarep lan trek karet. Trek karet kompatibel karo model Morooka kalebu MST300, MST600, MST800, MST1500, MST2200, lan MST3000, lsp.