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ºò±K«×ªñ¦üÈ--------------------50 g/L
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SiO2§t¶q------------------------- 99.8 wt%
Al2O3§t¶q------------------------ 0.05 wt%
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TiO2§t¶q------------------------- 0.03 wt%
HCL§t¶q-------------------------- 0.025 wt%
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