3902902000 - Polybut-1-ene, a copolymer of but-1-ene with ethylene containing by weight 10|% or less of ethylene, or a blend of polybut-1-ene with polyethylene and/or polypropylene containing by weight 10|% or less of polyethylene and/or 25|% or less of polypropylene, in one of the forms mentioned in note|6(b) to this chapter Harmonized System Codes, Taric Code, HS Code, HTS Code, Harmonized Commodity Description, Commodity Codes, Classification of goods, Tariff Nomenclature, Customs Tariff Number, Tariff Classification.