Maintainer Corporation of Iowa, Inc., with facilities in Sheldon and Rock Rapids, Iowa, has been manufacturing high-quality, custom-built mechanics service truck bodies, lube truck bodies, and cranes for 50 years. Maintainer also manufactures popular service truck accessories like DuaLock Aluminum Drawers, Bolt Bins, Lube Skids, and their patented Pressurized Storage System. You can find out more information at their website: www.maintainer.com