Every synthetic resin has its advantages and disadvantage,some resin's disadvantage is just the advantage for polysilicone.
种有机合成树
有自
优
,它们正好是有机硅聚合物优。
，人造树Every synthetic resin has its advantages and disadvantage,some resin's disadvantage is just the advantage for polysilicone.
种有机合成树有自优,它们正好是有机硅聚合物优。
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