Ngaphambi kokusebenzisa i-rivet evulekile yekhanda elidonswayo elingaphansi kwe-countersunk, kubalulekile ukwenza imbobo engaphansi kwe-countersunk epuletini kuqala, kungenjalo kuzoba lula ukungalingani ngemva kwe-riveting. Isikhathi sokuthunyelwe: Meyi-07-2022