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zhongma88619

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Originally posted by linwei9861 at 2010-06-01 22:57:23:
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12Â¥2010-06-02 00:06:54
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It is due to the black carbon formed on the surface. I thnik you should use H2 to reduce again.
13Â¥2010-06-02 02:22:08
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linwei9861

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Originally posted by zhongma88619 at 2010-06-02 00:04:31:

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leo_machere

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liunan433

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Originally posted by zhongma88619 at 2010-05-28 00:14:16:
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17Â¥2010-06-04 17:24:43
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yangxushi

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