Gerdau Ball Grinding Factory in Duluth shaping the mining industry
DULUTH, Minn.– In Duluth there’s a mining factory producing a one-of-a-kind steel product, that’s in high demand across the country. The Gerdau Ball Grinding Factory is a global staple for the mining industry, where rods of steel are heated to 2-thousand degrees, and forged into balls. “We get our raw material, which you can see out in our yard. This…


