1.Icyuma cya aluminiyumu, TPE muburyo bwo guhuza ibikorwa
2.Kwiyongera kwamaboko kumva no gushushanya anti-skid
3. Kwishyuza byihuse kandi byizewe + kohereza amakuru
4.Kwishyuza nta idirishya rifunguye, moderi zose zirashobora gukorerwa kumurongo umwe
5.Umubiri winsinga zifunitse, intoki zumuringa zibyimbye, igihombo gito, kwishyurwa neza kandi byihuse, biramba