ZT mtundu trepanning mutu Trepanning mutu amatchedwanso monga kubowola annular, ndi chuma, zipatso ndi apamwamba dzenje chida chakuya, zokolola zake kuposa nthawi kubowola wamba.Ndi bwino kugwiritsa ntchito trepanning chida Machining dzenje pamwamba 50mm awiri.Chida ichi chikugwiritsidwa ntchito pazifukwa izi: 1) Mmimba mwake wa dzenje ndi 50mm pamwamba, ndi kulolerana kwapafupi pa kuwongoka ndi malo olondola.2) 2) chiŵerengero cha kutalika ndi m'mimba mwake cha dzenje chiri mu r ...
The kudula magawo ndi kutchula kokha ndi kusinthidwa malingana ndi zinthu zenizeni processing.Poyerekeza ndi mafuta odzola osakanikirana, mafuta oyera amatha kusintha moyo wautumiki wa chida.