Umlando weminyaka engama-20 ekuthuthukiseni nasekukhiqizeni i-fiber ceramic.
Ucwaningo nentuthuko yeminyaka engama-20 ngemikhiqizo ye-ceramic fiber.
Iminyaka engama-20 ikhipha futhi isungula izindlela zebhizinisi [isikhungo sokucwaninga + iseluleko sabachwepheshe + imiklamo yokonga i-fiber cery yokonga amafutha ezimboni].
Ukugxila kweminyaka engama-20 ocwaningweni lwezixazululo zokonga amandla kagesi ezisebenza kahle kakhulu.