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5 Tph Gypsum Powder Ultra Fine Grinding Mill

2020-09-11 1 Mohs hardness of pyrophyllite is 1-2 with good machining performance easy to break easy to grind. The hardness increases with increasing SiO2 content. 2 Pyrophyllite powder are generally white and the whiteness is generally 80 up to 93. The whiteness of pyrophyllite after calcination can reach 96.

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