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    lrg20-11-04 g[


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    70

    0.68

    1.57g/cm3

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    0.98

    0.95g/cm3

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    0.35

    1%

    S

    0.05

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    53%

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    K601.5

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    0.025

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    K801.8

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    oúVҎ0.5-1mm,1-2mm,2-4mm,3-5mm,4-8mm,8-12mm

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