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The development process of polystyrene
發(fā)布日期：2019-6-13 閱讀數(shù)：1222
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.
