Kupanga zonse kunkachitikira m'nyumba kuyambira kufota mpaka kumapeto .Kuwunika kuyenera kuchitika panthawi iliyonse ndikulemba zolemba.
Kuyang'anira: Tili ndi zida zowunikira zapamwamba monga makina oyezera a Brown & Sharpe ogwirizanitsa atatu, Colin Begg P100/P65/P26 malo oyezera, chida cha German Marl cylindricity, Japan roughness tester, Optical Profiler, projector, makina oyezera kutalika etc. kuyendera komaliza molondola komanso kotheratu .