Every synthetic resin has its advantages and disadvantage,some resin's disadvantage is just the advantage for polysilicone.
各种有机合成树脂有各自的优点
缺点,它们的缺点正好是有机硅聚合物的优点。
Every synthetic resin has its advantages and disadvantage,some resin's disadvantage is just the advantage for polysilicone.
各种有机合成树脂有各自的优点缺点,它们的缺点正好是有机硅聚合物的优点。
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