Nibikoresho byoroheje bizamura crane ishobora gukoreshwa hamwe no kuzamura amashanyarazi; birakwiriye kubikorwa bigufi, kenshi, nibikorwa bikomeye; biroroshye gukora, bizigama igihe n'imbaraga, kandi bifite umutekano kandi byizewe; uburebure bwa kantileveri n'uburebure bwinkingi birashobora gutegurwa ukurikije imikorere itandukanye.