Crafts excavator hnyav lub pob zeb thoob yuav siv cov phaj tuab tuab thiab hnav cov khoom siv tiv thaiv los txhawb lub cev xws li cov hniav loj, sab hniav, sab phab ntsa, sab nraub qaum phaj, plhaub phaj thiab nraub qaum strips.Tsis tas li ntawd, lub pob zeb hnyav hnyav siv lub pob zeb hom excavator thoob cov hniav nyob rau hauv es tsis txhob ntawm tus qauv blunt hom kom zoo dua nkag quab yuam, lub caij no, hloov lub sab cutter mus rau sab protector tiv thaiv tej yam thiab hnav rau sab hniav.