Utwugarizo nigice cyingenzi cyo gushiraho impumyi.Utwugarizo dufata impumyi neza ahantu hifuzwa, yaba urukuta, ikadirishya cyangwa igisenge.
Imikorere
Zitanga ituze ninkunga, zifata impumyi ahantu kandi zikababuza kugabanuka cyangwa kugwa.Hariho ubwoko butandukanye bwimyenda, nkimbere yimbere yimbere, ikoreshwa mugushikira isura ihuriweho mumadirishya yikiruhuko;Inyuma yimbere yimbere, itanga ubwirinzi bunini hanze yikadirishya;n'ibisenge by'igisenge, bikoreshwa mugushiraho impumyi hejuru kurusenge hejuru.Mugushiraho utwugarizo neza no kubizirika hamwe na screw cyangwa ibindi byuma, impumyi ziguma mumwanya kandi zigakora neza, bigatuma imikorere ikora neza no guhindura impumyi nkuko bikenewe.