Polar Corp., which grew from a small welding shop in Opole, Minn., into North America’s largest manufacturer of aluminum, stainless steel, and carbon steel tank trailers, is celebrating its 65th anniversary.
Polar Corp., which grew from a small welding shop in Opole, Minn., into North America’s largest manufacturer of aluminum, stainless steel, and carbon steel tank trailers, is celebrating its 65th anniversary.