Kaiyuan rock arm e kentsoeng ho XCMG 520 excavator e se e tšoana le tlhahiso e ntle haholo, e theha boleng bo boholo ba moruo ha e ntse e fana ka litholoana tse ntle haholo.
Matsoho a majoe a Kaiyuan, joalo ka letsoho le fapaneng, le loketse meepo e tsoang ka har'a theko ea rock, e joalo ka leqhubu la liqhomane, Shale Rock, Shale Rock, Shale Rock, Shale Rock, Shale Rock, Shale Rock, Shale Rock, Shale Rock, Shale Rock, Shale Rock, Shale Rock, Shale Rock, Shale Rock, Shale Rock, Shale Rock, Shale Rock, Shale Rock, Shale Rock, Shale Rock, Shale Rock, Shale Rock, Shale Rock, Shale Rock, Shale Rock, Shale Rock, Shale Rock, Shale Rock, Shale Rock, Shale Rock, Shalet joalo-joalo E na le liphello tse ntle, matla a thepa e phahameng, tekanyo e tlaase ea ho hlōleha, matla a phahameng a matla ha a bapisoa le lihamore tse pshatlang, le lerata le tlaase. Rock Arm ke khetho ea pele ea lisebelisoa ntle le maemo a ho phatloha.