... . It is the most widely used design scheme of the storage system (1) Aisle pallet rackingStructural feature: Aisle pallet racking is ... beams instead of pallets. Pallet racking is the most common storage system which is used in fields of manufacturing industry,the ... box beams include: K80,K90,K100,K110,K120,K140,K150 Sectional sizes of step beams include:PK80,PK100,PK120,PK135,PK150Pallet ...