Different grades of crystalpolystyrene molding pellets range from 150,000 to 350,000 weight average molecular weight.
不同牌号的结晶聚苯乙烯模塑粒料平均分子量范围从150,000 - 350,000。
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Polystyrene and silica colloidal crystal multilayers with controlled thickness are fabricated quickly by the vertical deposition method at certain temperature and humidity.