Izina ryibicuruzwa: ibyuma bibiri bitagira umuyonga Ibicuruzwa byihariye: an4, an6, an8, an10, an12, an16 Ibikoresho byibicuruzwa: imbere ya NBR imbere, ibice bibiri byibyuma bikozwe mubyuma, ubushyuhe bwinshi hamwe n’umuvuduko mwinshi.Nibyiza bikwiranye nimodoka yanga amavuta yo gukonjesha. Ibipimo byihariye bihuye ni ibi bikurikira: An4: diameter y'imbere = 5.56mm, diameter yo hanze = 11.18mm; An6: diameter y'imbere = 8.7mm, diameter yo hanze = 13.97mm; An8: diameter y'imbere = 11.11mm, diameter yo hanze = 16.26mm; An10: diameter y'imbere = 14.2mm, diameter yo hanze = 20.32mm; An12: diameter y'imbere = 17.46mm, diameter yo hanze = 23,50mm; An16: diameter y'imbere = 22.23mm (nta stock, yihariye) Icyitonderwa: kubera ko umuyoboro wimbere ari NBR rubber tube na elastique, nibisanzwe ko amakuru yapimwe agira kwihanganira runaka (Ndetse nibicuruzwa byuma bikoreshwa muri roketi zo mu kirere bifite kwihanganira, nyamuneka ubyumve). Reba indangamuntu mu mbonerahamwe ikurikira kugirango ubone ibisobanuro birambuye (igice cyindangamuntu ni santimetero)