Nakong ea ts'ebetso ea letsatsi le letsatsi ea tlhahiso, ka lebaka la botsofali ba sebōpi sa sintering, jenereithara ea naetrojene, ho bola ha ammonia le lisebelisoa tse ling, lihlahisoa tsa metallurgy ka mor'a sebōpi li na le letoto la mathata a oxidation a kang blackening, yellowing, decarburization, le sandblasting ka t. ..
Bala haholoanyane