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氢化丁腈等特种橡胶密封制品应用广泛
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2009-06-10
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特种橡胶制品的开发与研制取得新进展
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2009-05-20
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全球橡胶消费量降至2219万吨
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2009-05-11
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丁腈橡胶涨势可期 不过乐观中需谨慎
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2009-05-09
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