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The development process of polystyrene
發布日期：2019-6-13 閱讀數：1216
In 1839, the Germans first extracted polystyrene from natural resins.
In 1930, BASF began commercial production of polystyrene in germany.
In 1934, Dow began producing polystyrene in the United states.
In 1954, Dow began producing styrofoam.
