Ferro-dysprosium, containing by weight:
-|78|% or more of dysprosium and
-|18|% or more but no more than 22|% of iron
7202998030
Calcium-silicon - an alloy that contains by weight 16 % or more of calcium, 45 % or more of silicon, not less than 4 % but less than 14 % of iron and not more than 10 % of any other element; whether or not presented in bulk, packaged in bags or in steel