Eurostat, Luxembourg. 40023100 (01/1988-..) Isobutylene isoprene rubber `IIR`, in primary forms or in plates, sheets or strip: CN 40023100 /Exports /Unit = Prices (Euro/ton) /Partner: Togo /Reporter: European Union /40023100:Isobutylene Isoprene Rubber `iir`, in Primary Forms or in Plates, Sheets or Strip.