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ʱ䣺2019-12-04 21:15:38

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  1.ͨʯӢɰҪˮУ궼û⣬ֻҪֹʯӢɰʧУȾ˲ҪΪˮУԽкˮеȾオ⡣

  2.ʯӢɰڴˮУɰУһ23ҪͨȾȾסʯӢɰͲ𵽺ܺõĹˣֻܸʯӢɰͨIso9001-2000ϵ֤ ԼֵڷΧڵˮжȶڼˮ΢ܽ⣬ѧˮSiO22mg/L ʯӢɰù0.5-1.0mm 0.6-1.2mm 0.8-1.6mm 1.0-2.0mm 2.0-4.0mm 4.0-8.0mm 8.0-16mm 16-32m

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