Se etsang hore letsoho la rock la Kaiyuan le kenngoe ho XCMG 490 excavator ho fapana le tlholisano ke moralo oa eona o phahameng le boenjiniere.
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.