Đặt câu với từ "ferroalloy"

1. Niobium ferroalloy and niobium additive for steels, cast irons, and other metallic alloys

2. In the present invention, while the maintaining step is being carried out, so too is a nitrogen-absorption prevention or denitrification step in which the molten ferroalloy or molten non-ferrous metal is subjected to nitrogen-absorption prevention or denitrification.