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160-200 Ŀ

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≥ 750

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8 ml/g

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~ 5 00g /L

PH ֵ

7 . 5

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≤ 0 . 1%

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≤ 0 . 5%

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≤ 0.2

�F

≤ 0.3

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≤ 0.3

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≤ 10