Umugozi uzengurutse Igikoresho cyo Kuzenguruka

· Gushoboza gukuraho insulasiyo mu gice kirekire no hagati yuburebure bwa kabili

· Guhindura ubujyakuzimu

· Gushoboza guca hamwe, muri spiral no kumuzenguruko

· Yashyizwemo icyuma kizunguruka

· Bishyizwe hamwe na knob kugirango uhindure umuheto

· Umunzani (Ø10, 15, 20, 25 mm) kuri limiter