Andover Trailers has a Sales, Service and Manufacturing agreement with Goldhofer Trailers from Memmingen , Germany . Goldhofer are bringing out new developments all the time, the peripheral necks available on their extending step frames to give a longer extension and the cranked axles with extended spine on their STZ-VH extending low loaders to give a longer extension to the lower deck. Strength is one of the main selling points of the Goldhofer which has been proved many times in the UK . Goldhofer has wind mill equipment in operation in the UK as well as step frames and low loaders. Alleley's Heavy Haulage has a large fleet of Goldhofer THP equipment, and Andover has supplied THP equipment to the Baltic States and Nigeria . Andover use the Goldhofer steering system on its power steered dropwell low loaders, as this system is the best in Europe with the cylinders and levers all in double shear.