3921190070 - Microporous membranes of expanded Polytetrafluoroethylene (ePTFE) in rolls, having: -|a width of 1|600|mm or more but not more than 1|730|mm, and -|a membrane thickness of|15|μm or more, but not more than 50|μm for use in the manufacture of a bi-component ePTFE membrane Harmonized System Codes, Taric Code, HS Code, HTS Code, Harmonized Commodity Description, Commodity Codes, Classification of goods, Tariff Nomenclature, Customs Tariff Number, Tariff Classification.