Cov khoom hauv qab yog muab faib ua: cov menyuam taug qab, cov menyuam sab saum toj, idler, sprocket, roj hmab thiab steel khiav.
Roj hmab ncoo yog ib hom kev txhim kho thiab txuas ntxiv ntawm cov khoom siv roj hmab khib nyiab, lawv feem ntau yog pib nruab rau ntawm cov hlau lem, nws tus cwj pwm yooj yim rau kev teeb tsa thiab tsis ua rau txoj kev puas tsuaj.
Ntau yam ntawmhlautaug qabs yog tsim rau ntau Excavators, Bulldozers thiab Mini-tshuab, yog li peb muaj peev xwm los xyuas kom meej koj cov cuab yeej hloov mus rau qhov zoo.taug nkawm khaumuab los ntawm YIJIANG.