We supply foundations for living. Robar Enterprises, Inc. contributes to the growth of our great nation by supplying the foundational construction materials found in residential, commercial, industrial, state, and federal construction projects. Family owned since 1955, Robar is comprised of Endura Steel, Inc. - a full-service materials supplier of stainless steel, rebar, aluminum and more with locations in Hesperia and Thousand Palms, CA and Ft Mohave, AZ; Hi-Grade Materials Co. manufactures and supplies concrete and aggregates throughout the Victor Valley, Antelope Valley and Coachella Valley with 10 batch plants and 7 quarry sites; and Smith Ironworks delivers custom metal fabrication services for industrial, commercial, and residential projects.