和名 ニトリル(Expanded Royalite M21982-1 (field || plane of sample) )
英名 Nitrile Rubbers Expanded Royalite M21982-1 (field || plane of sample)
化学式
備考 Polystyrene-acrylonitrile and polybutadiene-acrylonitrile (U.S.Rubber).