Tsarin gini
An yi farantin waje da kayan buffer da filastik, kuma an buga katakon giciye a cikin wani tsagi mai siffar U tare da takardar sanyi mai birgima mai kauri kusan 1.5mm; An haɗa farantin waje da kayan buffer zuwa ga katakon giciye, wanda aka haɗa shi da katakon tsayin firam ta hanyar sukurori kuma ana iya cire shi a kowane lokaci. Roba da aka yi amfani da shi a cikin wannan bututun filastik gabaɗaya an yi shi da polyester da polypropylene ta hanyar injection molding. Misali, bututun motar Peugeot 405 an yi shi ne da kayan polyester kuma an yi shi ne ta hanyar injection molding. An yi bututun Volkswagen na Audi 100, golf, Santana a Shanghai da Xiali a Tianjin da kayan polypropylene ta hanyar injection molding. Akwai kuma wani nau'in filastik da ake kira tsarin polycarbonate a ƙasashen waje, wanda ke shiga cikin sassan gami kuma yana ɗaukar hanyar injection molding. Bumper da aka sarrafa ba wai kawai yana da ƙarfi mai ƙarfi ba, har ma yana da fa'idodin walda, amma kuma yana da kyakkyawan aikin rufi, kuma ana amfani da shi sosai akan motoci.
Tsarin siffar bamper ɗin ba zai yi daidai da siffar dukkan abin hawa ba kawai don tabbatar da kyau, har ma ya dace da halayen injina da halayen shan makamashi don tabbatar da shaƙar girgiza da kuma kwantar da hankali yayin buguwa.
