HCH-197 unsaturated polyester resin is a bisphenol-A chemical resistance of unsaturated polyester resins.

197不饱和聚酯树脂是一种双酚A型耐化学性不饱和聚酯树脂。

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HCH-197 unsaturated polyester resin is a bisphenol-A chemical resistance of unsaturated polyester resins.

197不饱和聚酯树脂是一种双酚A型耐化学性不饱和聚酯树脂。

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