Impinduka nyinshi zuzunguruka hamwe na gasketi irangiye
Lispring ni uruganda ruzobereye mu gukora amasoko meza kugeza ku isoko yo hejuru. Buri mpera yimpera-iherezo kugeza hejuru yisoko yisoko ifite impeta iringaniye nkimpeta yo gushyigikira, hamwe nimpinga-y-ikibaya-amasoko menshi yumuraba; hejuru no hepfo ibice bihurira kumasonga no kumurongo wumuhengeri; umubare wimpinduka zifatika ni 2 uhindutse munsi yumubare wuzuye.