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            £ 2009-05-11 10:58
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            һ.1.5mm-0.5mm 80-220kg/m3ҕÑҪ.Ʒ,ɰ{,pϵ.

            .1mm-0.35mm 80-220kg/m3ҕÑҪ.pͻ𱣜ز,Npȼϰ.

            .0.5mm-0.15p,pƷ,شu.

            .0.3-0.1mm 220kg/m3-350kg/m3ʯ,,zϵIʹ,ܶIܴʹ.

            .-0.08-0.044mm 220-500kgm3Ϳ,ɫͿϵʹ.

            .2.0mm-0.3mm 750-1150kg/m3Fұwʹ,p,p,puʹ.

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