Food grade rolls Alloy/temper: 8011/O, 1235/O Foil thicknesses and tolerance: 0.0045 to 0.020mm Foil width tolerance: 250, 280, 290, 295, 300, 400, 450, 600, 730, 1.0mm Inner core: 76.2mm (3 inches), 150 or 152.4mm (6 inches) Outside diameter:150- 1450mm (maximum) Surface quality: one side bright, other side dull clear smooth without defects, gaps, riddles lubricant leftovers, folds and mechanical defects, chromatic surface Packaging: rolls be packed inside PE film with a desiccant which would protect from dust and moisture, latched in export standard wooden boxes http://www.aluminium-disc.com/html/Products/aluminium%20foil/66.html