Ni ukubera iki ibice byimpumyi byubatswe bisabwa na ba shebuja imyaka mirongo?

Ibi ni ukubera ko iyo imiterere yimpumyi yimiterere ihindagurika, mandel irashobora gufungwa mumubiri wa rivet, bigatuma umubiri wa rivet hamwe na mandel kumurongo umwe wogosha, bigaha abayikoresha guhangana nogosha.Imbaraga zingana nazo zitezimbere icyarimwe.Umutwaro muremure wa clamping uterwa nuburemere bukabije bwa rivet mandel ubwayo ifunga mandel mumubiri wa rivet.