... 53kgs 4)Certificate:CE,3C,ISO2001,ISO1400 metal book shelf /metal rack 86-13027627808 Quick DetailsGeneral Use: Commercial ... Number: HDS-03color: grey, yellowmaterial: steelsingle side/double side: double sidecertificate:CE,3C,ISO2001,ISO14001 Specificationsmetal bookshelf ,standard size ... quick-assemble design.in knock down structuresingle or double sides loading style, standard size,customized size is ...