The JOST Group is the world's leading producer of vehicle connection components for systems, modules and compo-nents for trucks& trailers. The comprehensive range of products is broken down into four areas: The JOST brand includes fifth wheel couplings, telescopic landing gears and accessories for semi-trailers, ball bearing turntables and container locks as well as components for alternating systems. The trailer axles of the DCA Family are also sold under the JOST brand. Under the traditional brand name of ROCKINGER, the company produces towing hitches, drawbar eyes and towing drawbars for both transporters and trucks, as well as for use in the agricultural industry. TRIDEC is the leading provider of steering systems and single wheel suspensions for trailers. EDBRO is the leading company in the field of vehicle-mounted hydraulic systems. Its range includes push cylinders for front and underfloor dump trucks and trailers, as well as customer-specific hydraulic construction kits.