EU Trademark Classification EU01 Chemicals Polystyrene in granular form for extrusion Class 01 Polystyrene in granular form for extrusion 4191 挤出用颗粒状聚苯乙烯 Chinese 挤出用颗粒状聚苯乙烯 English Polystyrene in granular form for extrusion Site ref. 4191 Class 01 Included in Harmonised Database (HDB)