... system, material: Q235 steel load capacity: heavy duty 1000-4000kg metal selective pallet racking system, storage rack 1.Long span middle duty warehouse ... wide variety of applications high density storage of small parts, heavy items, large and bulky items, and odd shaped or awkward ... *25002700*1000*4000Upright80*40&80*60mmBeam80*50mmShelf0.6-1.0mm heavy duty metal rack