It was during these years that the term "Märklin railroads" became a byword for model trains among the public at large. For various reasons, including increasing controls on raw materials, the years after 1935 brought renewed paring down and reorienting of the product range. Toys not part of the railroad products were cut back more and more, and the whole range of gauge 1 products was given up in favor of an "OO gauge miniature railroad" - the name given to the table-mounted railroad introduced in 1935. This novelty, available as a ready-integrated system, rapidly became so popular that by 1939 it already had an extensive program. Märklin began using new technical procedures such as zinc die casting, first in locomotives, coach trucks, wheels and accessories. Between 1948 and 1955 freight cars were also produced completely under this method.