Eurostat, Luxembourg. 72022910 (01/1997-..) Ferro-silicon, containing by weight <= 55% silicon and >= 4% but <= 10% of magnesium: CN 72022910 /Exports /Unit = Prices (Euro/ton) /Partner: Rwanda /Reporter: European Union /72022910:Ferro-silicon, Containing by Weight <= 55% Silicon and >= 4% but <= 10% of Magnesium.