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ò3?òì?á?êêó?óú?á???D????D?????'|àí??ê?àí??????'|àí2ú?·??רò?éú2úò3?òì?á???2ú?·ó??ê??????o?àí??
?t??ò3?òì?á???àí?????§D??ü·??? (?'DDGB/T6166--1985)
·??????? | 2aê?êy?Y | ·??????? | 2aê?êy?Y |
±è?? | 1.6g/cm3 | ???á?éèü?ê | 2.8?? |
èY?? | 0.8g/cm3 | SiO2 | 65?? |
???e?ê | 1.8?? | Al2O3 | 18-22?? |
?×???ê | 56?? | Fe2O3 | 6-8?? |
±è±í???y | >980cm2/g | ???ü?eê?o?á??ù2?3?±ê | |
ò3?òì?á?3?ó?1????o1-2mm 2-3mm 2-4mm 3-5mm 4-8mm 5-10mm.
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