Shelf system has cross-bars with longitudinal reinforcing ribs which have two folds at top, lower of two folds forming bracket which supports shelves, and third fold at base of cross-bar forming reinforcing strip

摘要

The shelf system has cross-bars with longitudinal reinforcing ribs (23). They have two folds (11, 13) at the top, the lower of the two forming a bracket (16) which supports the shelves. A third fold (14) at the base of the cross-bar forms a reinforcing strip (10).