Global Clue

To heat and cool gradually glass or metals, usually to temper or toughen them

Let's find possible answers to "To heat and cool gradually glass or metals, usually to temper or toughen them" crossword clue. First of all, we will look for a few extra hints for this entry: To heat and cool gradually glass or metals, usually to temper or toughen them. Finally, we will solve this crossword puzzle clue and get the correct word. We have 1 possible solution for this clue in our database.