Explanatory notes
… a double silicate of beryllium and aluminium, which is classified under heading 26.17 except when it is in the form … tools, etc.); and with nickel. These alloys are, however, classified in Chapter 72, 74 or 75 respectively since they … beryllium. This heading covers beryllium in all its forms, i.e., unwrought metal (in blocks, pellets, cubes, etc.), …