3904610030 - Polytetrafluoroethylene, in the form of powder, of a specific surface of 8|m$2/g or more but not more than 12|m$2/g, a particle size distribution of 10|% of less than 10|µm and 90|% of less than 35|µm and an average particle size of 20|µm Harmonized System Codes, Taric Code, HS Code, HTS Code, Harmonized Commodity Description, Commodity Codes, Classification of goods, Tariff Nomenclature, Customs Tariff Number, Tariff Classification.