Every synthetic resin has its advantages and disadvantage,some resin's disadvantage is just the advantage for polysilicone.
种有机合成树脂有
优点和缺点,它们缺点正
是有机硅聚合物优点。
Every synthetic resin has its advantages and disadvantage,some resin's disadvantage is just the advantage for polysilicone.
种有机合成树脂有优点和缺点,它们缺点正是有机硅聚合物优点。
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