The resins were used to turn out millions of helmet liners. 用這類樹脂生產了成百萬隻鋼盔內襯。
The rosin modified phenolic resin, a mainly important one among all resins used as bands for offset inks, has the call for printing ink. 松香改性酚醛樹脂是平版油墨用連接料樹脂的主要代表，也是印刷油墨中用量最大的一類樹脂。
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