Pali zobowola zosiyanasiyana, anthu ntchito pobowola, wotopetsa, lapping, honing, lathing ndi etc. Drilling Processing.Kubowola ndi njira yachibadwa yoboola bore.Makina obowola amagwiritsa ntchito zida zoboola kuti apange mabowo pazinthu zosiyanasiyana.Pazinthu zosiyanasiyana zingagwiritse ntchito dif...
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