Since 1960, Lanzen Fabricating has been supplying  the Defense, Transportation and many other diverse  industries with precision metal fabrication services.  Lanzen's two Michigan manufacturing facilities located in the cities of Roseville  and Mancelona are well equipped to meet the high standards of quality that our  customers have come to expect. We invite you to learn about our prototyping and  production capabilities by browsing the pages of our web site.