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˾ѭ\(chung )(w)(sh)İl(f)չƌW(xu)ƺ̈́(chung )M(jn)šн(jng)ļg(sh)Įa(chn)Ʒ|(zh)鱾˾L(chng)hl(f)չ.
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Ӌλǧ ؛ Сӆ10 a(chn)Ʒr(ji) Ʒƣ Ҏ̖ bf(shu)ʯӢɰa(chn)Ʒśr
ʯӢɰʯӢʯ(jng)ӹɵʯӢwʯӢʯquartzrockQ(chng)ʯһN|(zh)؈ӲĥW(xu)|(zh)Ĺ}(li)VȻʯӢɰrʯӢr}ʯӢʯӢɰrǹ̽YмrʯʯӢм_95%ʯӢɰ(li)ԴڸNr{rer׃|(zh)r|(zh)V^VL(chng)ʯĸVʯӢrֳe׃|(zh)ɷNǰмwczYĽ@ָ׃|(zh)̶|(zh)ʯӢrVʯ}ʯӢɟҺγȫʯӢM܉KʯӢɰеVﺬ׃^ʯӢΞL(chng)ʯĸrмصVVʯӢɰһNӲĥW(xu)ܷĹ}VҪVɷSiO2ʯӢɰɫɫo(w)ɫӲ7Դo(w)ؐ֬ܶȞ2.65ѷeܶȣ1-20Ŀ1.620-200Ŀ1.5仯W(xu)W(xu)͙Cеܾ@ĮKOHҺc(din)1750ʯӢɰҎУ0.5-1mm1-2mm2-4mm4-8mm8-16mm16-32mm10-20Ŀ20-40Ŀ40-80Ŀ100-120Ŀ