... System 1)step/box beam, 2)cold rolled 3)Material Steel Q235 4)Three or more layer Warehouse pallet racking is also ... warehouse;2), Upright is formed by high-quality cold rolled steel, with an omega shaped section and hole distance 50mm or ... : upright protector, guide rail, frame barrier, row spacer, wire decks, steel shelf, etc.;6), Stable structure, large loading capacity, convenient sorting ...