Maruichi Leavitt Pipe & Tube has been manufacturing quality steel tubing products for more than 58 years. Headquartered in Chicago, IL, our 44 acre campus includes two facilities with manufacturing, warehouse, and office space. Maruichi Leavitt is known throughout the industry as "The Tube People". Our employees pride themselves on providing quality tubing and unparalleled customer service. And with our commitment to "Investment, Innovation, Integrity" Maruichi Leavitt will remain an industry leader for generations to come.