Iinzuzo zeMveliso kunye noBulukhuni beeNkcukacha Iinzuzo zeMveliso: 1. Ukuqina, ukulungeleka, ukuqinisekiswa komgangatho 2. Kukho iinkcukacha ezahlukeneyo kunye neemodeli, ezinokuthi zenziwe ngokwezifiso 3. Ubukhulu obufanayo, umgangatho othembekileyo, kulula ukuyisebenzisa kunye noluhlu olubanzi lokusetyenziswa 4 .I-inventri eyaneleyo kunye nonikezelo lwamabala oBulukhuni Iinkcukacha: Umphezulu we-Rockwell ubulukhuni bentsimbi ye-annealed plain carbon steel jikelele yi-55+-3, kunye nokuqina kwentsimbi engafakwanga eqengqelekayo eqengqelekayo eqinileyo ingaphezulu...