ʯӢɰ-ʯӢɰS-ʯӢɰl |
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]: | ַ:ɽ|ʡͲܴ^IJ^ˮȪ壨ί50ȪI@ȣ |
Ʒ ܶ 2.7g/cm3 ɫ ɫ Ҏ 0.5-1mm,1-2mm,2-4mm,4-8MM,8-16mm,16-32mm,4-6Ŀ,6-10Ŀ,10-20Ŀ,20-40Ŀ,40-80Ŀ,80-100Ŀ,100-120Ŀ,NҎ ; T Ӳ ĪӲ7 躬 99% c 1700棩 a ɽ| aƷQ ʯӢɰ ƷB |
չʾϢɕTṩݵ挍ʴ_ԺͺϷɰlTؓ؟C֮Ҍ˲Гκ؟ ѣҎُILUhُIPaƷǰձش_JY|aƷ| |
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