Iyo Kaiyuan Intellectual Property ruoko yakasanganiswa muHitachi 870 yakagadzirirwa kugadzirwa kwakasiyana, kuve nechokwadi chekutyoka kwedombo kunoshanda zvakanyanya kupfuura nakare kose.
Rock Arm of Excavator, seyakawanda-chinangwa chakagadziridzwa ruoko, inokodzera kumigodhi isina kuputika, yakadai semigodhi yemarasha yakavhurika, migodhi yealuminium, migodhi yephosphate, migodhi yegoridhe yejecha, migodhi yequartz, etc. Inokodzerawo kucherwa kwedombo kwakasangana mukuvaka kwekutanga sekuvakwa kwemugwagwa uye kuchera kwepasi, kuchera pasi pevhu, dombo rakapfava, dombo rakapfava, dombo rakapfava, dombo rakapfava, dombo rakapfava, dombo rakapfava, dombo rakapfava 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.
