Iduka iryo ari ryo ryose ricuruza ibintu rigomba kubyamamaza, ibyo bikaba ari ngombwa, ariko tugomba gucira imanza ingingo nyinshi za poropagande mu buryo bushyize mu gaciro. Urugero, poropagande izwi cyane yo "guhagarara ku muryango" bivuze ko kera atari siyansi cyane. Akenshi iyo tuvuze ku modoka, agakoresho k'urugi gakunze gusohoka kugira ngo kavuge ikintu ku bice byayo, aka kantu gato kagomba kuvuga, ariko kugira ngo tubone uko tuvuga, ntabwo kavuga ibintu bidafite ishingiro.
Hari ubwoko bubiri bw'ibice bihuza umuryango n'umubiri, kimwe cyitwa hinge, ikindi cyitwa limiter, nk'uko izina ribigaragaza, kimwe gihamye, ikindi ni ukugabanya inguni y'urugi, reka dutangire na hinge. Hinge ikunze kuvugwa ko ari hinge, hari ubwoko bubiri busanzwe ku isoko muri iki gihe, stampe na casting, moderi nyinshi z'ibirango by'Abadage ni igishushanyo mbonera cya hinge. Kubera ko imiterere y'inyubako itandukanye, bityo ubwoko bubiri bw'ubugari bwa hinge ntibumeze kimwe, hinge zikunze kuba nini cyane kuruta hinge zishyizweho stamped.
Amapine y'ibihindizo afite ibyiza byo gukora neza no guhuza, muri make, ni manini kandi yoroshye, bitewe n'imiterere y'ubushobozi bwo gutwara ibintu nabyo bifite ibyiza, ariko uburemere ni bwinshi, ikiguzi cyo gukora kizaba kinini; Igiciro cyo gukora amapine y'ibihindizo kizaba gito, kandi nta kugabanuka kuzabaho ku modoka z'umuryango, zishobora guhaza ibyifuzo byuzuye.
