'Bronze' in the Bible

Eleazar the priest took the bronze censers that the ones who were burned presented, and they hammered them out thinly [as] plating for the altar;

So Moses made a snake of bronze, and he placed it on the pole; whenever a snake bit someone, and that person looked at the snake of bronze, he lived.

Only the gold and the silver, the bronze, the iron, the tin, and the lead--