... Warehouse storage rack 4.Provide various shelves racks 5.ISO9001:2000,CE,RoHs heavy duty ... -duty, medium-duty and heavy-duty racks. 2, heavy duty selective pallet racking-------Light ... -duty storage Racks (general angle steel shelving), complete joggling, ... duty selective pallet racking-Medium-----Heavy-duty storage racks structure is assembled, so the height is ...