2015/1723 - Item 1: A product with a stoichiometric composition consisting of magnesium aluminate (magnesium aluminium oxide) with the crystalline structure of spinel, a chemically defined product, in the form of irregular granules, lumps or powder. The product has a magnesium content, calculated as magnesium oxide, of approx. 28 % by weight, and an aluminium content, calculated as aluminium oxide, of approx. 72 % by weight. The product is used in the manufacture of refractory bricks and tiles used in the s - The Trade Hub