Polymers of styrene, in primary forms (excluding polystyrene, styrene-acrylonitrile (SAN) copolymers, acrylonitrile-butadiene-styrene (ABS) copolymers) | Polymere des Styrols, in Primärformen (ohne Polystyrol, Styrol-Acrylnitril-Copolymere (SAN) und Acrylnitril-Butadien-Styrol-Copolymere (ABS)) |