Ibishushanyo nurufunguzo rwinganda za aluminium. Hashingiwe kumyaka irenga 18 yubukorikori bwumwuga no gushushanya aluminiyumu ikuramo uburambe bupfa, Retop yishimira isuzuma ryinshi muruganda kandi ifite ikirango cyumwuga.
Dufite amahugurwa meza. Kubungabunga, gusana, no kubara ibicuruzwa. Itsinda ryumwuga R&D ryabantu barenga 20, ibicuruzwa birenga 20.000 kubakiriya baturutse impande zose zisi, birashobora kandi gushushanya no guteza imbere ibishushanyo ukurikije ibyifuzo byabakiriya, ifu nini yo gukuramo ni 450mm.
