Resol phenolic resin is one of important resin adhesives in foundry industry.

热固性酚醛树脂是树脂砂铸造生产中重要的树脂粘结剂之一。

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Resol phenolic resin is one of important resin adhesives in foundry industry.

热固性酚醛树脂是树脂砂铸造生产中重要的树脂粘结剂之一。

youdao