Zida Zodulira - Drilling Inser
Mabowo a Insert amagwiritsidwa ntchito pobowola mabowo akulu akulu. Nthawi zambiri amapezeka pazida zamakina. Atha kugwiritsidwa ntchito pa liwiro lokwera kwambiri kuposa zobowola zolimba komanso pazinthu zosiyanasiyana. Zimakhala zandalama chifukwa mutha kusintha zoyikapo zikayamba kuvala. Kusintha choyikapo kungatheke mwachangu kwambiri. Amakhalanso ndi malo angapo odulira pamalowedwe. Zobowola zolimba