1.Ibisuguti birashobora guhurizwa hamwe mubisuguti bikomeye, ibisuguti byoroshye, ibisuguti bitetse.
2.Tu yucho dufite igice cyikora cyumurongo n'umurongo wuzuye.
3.Tu yucho dufite ifuru yubwoko bwa gaz hamwe nitanura ryamashanyarazi.
4.Twe yucho dushobora gutanga umurongo wose uhereye kubikoresho fatizo kugeza imashini ipakira.