Offers superfine silica micro powder for super refractory,super-duty refractory. Sio2 99%-99.7% fe2o3 30-100ppm d50 1um, 2um, 3um 4um 5um 6um material; natural silica rock with high chemical content of sio2, we have the experience to provie you the right product and control costs through technical support.
Member Since 11 Years
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