YIJIANG tshwj xeeb hauv kev tsim crawler pob tseg tsheb qhov chaw rau MOROOKA, suav nrog cov menyuam taug qab lossis cov menyuam hauv qab, sprocket, cov menyuam sab saum toj, pem hauv ntej idler thiab roj hmab khiav. Cov roj hmab lem tau sib xws nrog Morooka qauv xws li MST300, MST600, MST800, MST1500, MST2200, thiab MST3000, thiab lwm yam.