The silica slurry filtration, washing, get silica and ammonium fluoride solution, ointment, ointment of silica was washed, dried silica products;
将白炭黑料浆过滤、洗涤，得到白炭黑软膏和氟化铵溶液，白炭黑软膏经洗涤、干燥得到白炭黑产品；
The silica slurry filtration, washing, get silica and ammonium fluoride solution, ointment, ointment of silica was washed, dried silica products;
将白炭黑料浆过滤、洗涤，得到白炭黑软膏和氟化铵溶液，白炭黑软膏经洗涤、干燥得到白炭黑产品；
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