can be seen in fig1 in a first portion of the fabrication process for producing the guide rail the two rail elements 2 are inserted into a support frame 5 the support frame 5 is made of metal for example steel or aluminum and has surfaces described in more detail below for precise accommodation of the rail elements 2 these accommodation surfaces are made rectangular in cross section and correspond to the cross sectional shape of the respective portion of the rail elements 2 after prior mounting of the arrangement as shown in fig1 the arrangement is inserted into an injection molding tool the injection molding tool by virtue of its cavity defines a molding which corresponds to the outer contour of the guide rail 1 which is to be fabricated after injecting the plastic material into the cavity of the injection molding tool the plastic surrounds both the rail elements 2 and also the support frame 5 so that the body which is shown in fig2 is formed the support frame 5 is at least partially surrounded by the plastic material in the illustrated embodiment shown in fig2 the support frame is completely extrusion coated with plastic while the rail elements 2 remain free of plastic material simply on the side facing away from the support frame 5 with this side of the rail elements 2 bearing the guideway 3 for the rolling bodies in the illustrated embodiment the two rail elements 2 are located on opposing end areas of the plastic body 4 the guide.