The Ultralox Interlocking® machine has proven to reduce labor, inventory costs, warehouse requirements, freight cost and damage issues. Ultralox® specializes in the Aluminum Guard Rail and Fence industry as a supplier of the Ultralox Interlocking® machine, which assembles railing and fence systems for use in commercial and residential decks, balconies, patios and pool surrounds. We work directly with building product distributors, fence companies and deck builders.