Ibicuruzwa

Ikintu kigaragara cyane muri uru ruhererekane rw'ingufu z'ubuhinzi ni agace ka hex bore gashingiye ku miterere y'umupira w'ingufu zirebire. Gakoreshwa mu bikorwa aho amakori, vis, cyangwa ibindi bikoresho byo gufunga bidakenewe. Uru ruhererekane rufite ingabo y'icyuma ifatanye neza ishyigikiwe n'agapfunyika ka rubber. Hari kandi n'inyuguti "G" ishobora kongera gukoreshwa.