Symmetrical long-distance aluminum alloy lower rail and stamping upper rail manual sliding rail

The utility model discloses a symmetrical long-distance aluminum alloy lower rail and stamping upper rail manual slide rail which comprises a left side common stamping forming inner rail and a left side manual inner unlocking mechanism assembly, and is formed by aluminum alloy extrusion of the aluminum alloy lower rail, so that the length is not influenced by the distance; bolt fixing points at any position, except the tooth groove working area, of the aluminum alloy lower rail can meet the requirement, and after the aluminum alloy lower rail is reinforced through the left side common punch forming inner rail and the right side common punch forming inner rail, the inner rail and outer rail type stripping strength can effectively meet the safety belt strength requirement of a 35KN seat ABTS. And the left side common punch forming inner rail and the right side common punch forming inner rail are subjected to punch forming, so that the light weight requirement of the short-distance adjusting seat is met to the m