Lapho okuqukethwe kwe-chromium ye-alloy kungaphansi okungenani okungenani kwe-12%, ngokwesibonelo embonini ye-aerospace, igama elithi "ukumelana nokuphikiswa kokugqwala" liyasetshenziswa. Insimbi engenasici ingena emabangeni ahlukene kanye nokuqedwa komhlaba, kuya ngokuthi kusetshenziswe kuphi.