The effect of cobalt and nickel p-hydroxy benzoates on the adhesion between NRand brass was studied.

  • 研究了对羟基苯甲酸钴和对羟基苯甲酸镍对天然橡胶与黄铜粘合的影响.

  • 互联网摘选 2025-01-18 15:21:58

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