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 ʯӢɰDzȻʯӢΪԭˮϴɸȼӹĿǰˮҵʹ㷺ľˮ 

ˮҪʯӢɰĿǰҹʹ㡢һˮڵ㡢˫˳غ͹ҵߴˮijв ҹ˾ʯӢɰȻʯӢΪԭɡ顢ˮϴɸֵȼӹ۳ʶ״İɫᾧʡеǿȸߡѧȶʹڳЧ 
ʯӢϳùУ0.5-1.0mm0.6-1.2mm0.8-1.6mm1.0-2.0mm2.0-4.0mm4.0-8.0mm8.0-16mm16-32mmҲɰûҪ伶IJƷ 

ʯӢָ꣺SiO2≥99%ĪӲ7≥ȡʣ0.35%ܶȣأ2.66g/cm3ĥʣ0.03%ܶȣأ1.75g/cm3϶45%е2550桢 0.02% ۵1480桢98%ˮ׼