... Storage Systems, selective pallet rack, shelving pallet racks,beam rack1), The most popular and economical racking in ... 50mm or 75mm;3), Box beam or step beam used. Beam can be freely adjusted by pitch ... 75mm;4), Connection of the upright and beam is by wedging, equipped with safety pin ... steel shelf, etc.;6), Stable structure, large loading capacity, convenient sorting;7), compatible with most type ...