1.Uburemere bukomeye no gukomera.
2.Kwinjira cyane.
3.Ubushuhe bushyushye.
4.Koresheje ifuni ikora cyane.
Ifu ya Nitrocellulose yinjizwamo imisumari ya hook ntabwo ikwiranye no gushariza urugo gusa, ahubwo ikoreshwa cyane mugushushanya umwanya wubucuruzi. Yaba hoteri yi hoteri, inzu yimurikabikorwa cyangwa urukuta rwubukorikori mu isoko, imisumari ihuriweho hamwe irashobora kongera ubwiza budasanzwe mu mwanya. Imisumari hamwe na hook ntishobora kwerekana ibihangano bitandukanye n'imitako gusa, ariko kandi izana ibintu byinshi bitangaje hamwe nibyerekanwe mumwanya binyuze mumikorere ihuriweho nogutanga ingufu.
Mu gusoza, imisumari ihuriweho hamwe, nkibikoresho byubaka byubaka, bitanga ubworoherane nuburanga mugushiraho imitako yinkuta, pendants hamwe namashusho ukoresheje imisumari ya hook. Igishushanyo cyacyo kidasanzwe hamwe nimirima yagutse ikora ihitamo neza kurimbisha urugo no gushushanya umwanya wubucuruzi. Waba urimo gushariza urugo rwawe cyangwa umwanya wubucuruzi, guhitamo imisumari ihuriweho bizakuzanira ubworoherane no guhanga udasanzwe.
1.Koresha isahani yicyuma, uburebure bwa 2mm.
2.Iyo urasa C30-C40 beto, ubushobozi bwo gushushanya muri 4200-5800N2. Ubukomezi butandukanye bwa beto bugira ingaruka kuburebure bwimisumari ya pipe iganisha kumakuru atandukanye. Dukoresha urwego rwumutekano rwamakuru. Mubisanzwe, gushushanya imbaraga zumusumari umwe wumutwaro uri munsi ya 100kg.
Umusumari wa hook ukoreshwa cyane mugukosora imitako, gushushanya, ibicapo hamwe nabapadiri kurukuta.
Kabiri shingiro, ifite umutekano kuruta umwe cyangwa ibyo bita moteri nyinshi. Igice cyingufu zumusumari wahurijwe hamwe gikozwe hamwe na nitrocotton na nitroglycerine cyangwa ibindi bikoresho bya pulasitiki biturika nkibice byingenzi byingufu. Mubisanzwe bikoreshwa mubibunda binini bya kalibiri hamwe na minisiteri yo kurasa.