... . 3.CE . Storage Systems, selective pallet rack, shelving pallet racks,beam rack1), The most popular and economical racking in warehouse;2 ... and hole distance 50mm or 75mm;3), Box beam or step beam used. Beam can be freely adjusted by pitch 50mm or 75mm ... protector, guide rail, frame barrier, row spacer, wire decks, steel shelf, etc.;6), Stable structure, large loading capacity, convenient sorting;7 ...