What is the item description for 400231 of HScode WCO-2017---World-Customs-Organization?
The description of the item 400231 of WCO-2017---World-Customs-Organization HScode: Synthetic rubber and factice derived from oils, in primary forms or in plates, sheets or strip; mixtures of any product of heading 4001 with any product of this heading, in primary forms or in plates, sheets or strip : Isobuteneisoprene (butyl) rubber (IIR); haloisobuteneisoprene rubber (CIIR or BIIR) : Isobuteneisoprene (butyl) rubber (IIR)