Kimwe mu bintu byingenzi mugihe cyo kubaka inyubako cyangwa ubwoko ubwo aribwo bwose bwubaka ni ugushobora gufata ibice byose hamwe.Ibi birashobora gukorwa ukoresheje inzego zitandukanye, ariko kimwe mubisanzwe niGuhuza insinga yo kubaka.
Imisumari ya kare hamwe na C hook ni ubwoko bwimisumari yihariye ya beto ya PPR.Yashizweho byumwihariko kumiyoboro y'amazi.Kandi hamwe nudukoni, irashobora gutunganya umuyoboro wamazi ushikamye kurukuta.Ikoreshwa cyane mubikorwa byubwubatsi.
Imisumari isanzwe ikwiranye nimbaho zikomeye kandi zoroshye, ibice by'imigano, cyangwa plastike, gushinga urukuta, gusana Ibikoresho, gupakira n'ibindi. Byakoreshejwe cyane mubwubatsi, gushushanya, no kuvugurura.