في ابريل23 | By: يناسب التعدين What is the change in whiteness and oil absorption after The whiteness was measured, the raw material was, the pH value was, the molar ratio of SiO2 to Al2O3 was :1, which was close to the ideal value of 2:1, and the content of impurities such as Fe, Ti, K, Na was lower, and the content was less than 2 μm.
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