... .2, Upright is formed by high-quality cold rolled steel, with an omega shaped section and hole distance 50mm or 75mm ... and beam is by wedging, equipped with safety pin to make sure of the safety.5, Stable structure, large loading capacity, convenient sorting.6 ... barrier, row spacer, wire decks, steel shelf, etc.7, Compatible with most type of handling equipment and building structures.8, First ...