zu
Ngenzamo yokuhlinzeka ngezixazululo ezithuthukisiwe zokubopha izimboni ezahlukahlukene, ulayini omusha we-ASTM A194 amantongomane asindayo wethulwe. Lawa mantongomane asezingeni eliphakeme anikeza ukusebenza okuphezulu, ukuqina, nokuthembeka, ukwenza kube yingxenye ebalulekile yokuqina okuvikelekile nokusebenza kahle.