Isici
1. Ukushisa okuphezulu kwe-alloy wire noma i-silicon carbon rod equkethe izakhi ezingavamile isetshenziselwa ukushisa, okuthembekile, okuphephile, impilo ende yesevisi futhi kulula ukuyibuyisela nokuyigcina.
2. Ulayini lwesithando somlilo olukhethiwe kwamanye amazwe lwekhwalithi ephezulu, ukuthululwa okubalulekile, impilo yesevisi yeminyaka engaphezu kwemihlanu, ayikho i-aluminium, akukho ukulahleka kwensimbi, akukho ukwanda kwensimbi;