Iyo Hitachi 670 yakashongedzerwa nerevolutionary kaiyuanzhichuang rock arm, ichivhura nguva nyowani yekuchera.
Kaiyuan Rock Arm, seyakawanda-chinangwa chakagadziridzwa ruoko, inokodzera kuchera pasina kuputika, senge yakavhurika gomba marasha, migodhi yealuminium, migodhi yephosphate, migodhi yegoridhe yejecha, migodhi yequartz, etc. Inokodzerawo kucherwa kwedombo kwakasangana mukuvaka kwekutanga sekugadzira mugwagwa uye kucherwa kwepasi pasi, kuchera pasi pevhu, dombo rakapfava, rakapfava, rakapfava, rakapfava dombo, dombo rematombo, dombo, dombo, dombo, dombo revhu etc. Iine mhedzisiro yakanaka, yakakwirira midziyo simba, yakaderera kutadza mwero, yakakwirira simba rekushanda zvichienzaniswa nekupwanya sando, uye yakaderera ruzha. Rock Arm ndiyo yekutanga sarudzo yemidziyo isina mamiriro ekuputika.
