INGINGO

1. Umutwaro uhagaze hamwe nurwego ruhagaze umutwaro nurwego, imipaka yo guhindura imipaka igabanya ibisabwa byo guhindura;

2. Umutwaro wa leta (gukoresha bisanzwe), umutwaro ntarengwa (akazi gakomeye);

3. Ibisabwa kugongana, imbogamizi no gupakira, imbogamizi zumwanya, ibyifuzo byateganijwe kandi bisabwa;

4. Uburyo bwo kwishyiriraho (harimo ingano ya bolt, ubwoko, icyerekezo nibisabwa kurwanya anti-rotation)

5. Ibisabwa birwanya ruswa, urwego rwubushyuhe, ibindi bisabwa imiti, nibindi;