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Product Description SiO2: 52.00~60.00%MIN MGO: 30.00~31.00%MAX CaO: 0.50~2.00%MAX Al2O3: 0.20~0.50%MAX Fe2O3: 0.30~ 0.50%MAX Whiteness: 85.0~90.0%MIN LOI: 7.00~25.00%MAX Moisture: 0.30%MAX Capaity: 70000mts/y Packing: BAGS.
talc powder