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Perlite Ore Screened

Perlite Ore Screened

2020-5-7The source of the ore for the manufacture of perlite is a naturally occurring siliceous volcanic rock. This is quarried, crushed and screened into closely graded fractions. Manufacture Perlite is converted into expanded perlite by heating it in a furnace. When quickly heated to above 870 o C ...

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