... in ceramics, ceramic glaze, glass, porcelain, abrasive materials and other industrys. Potassium feldspar is usually red, white ... abrasive materials and other industrial sectors and using for making potash fertilizer. It is Best feldspar quality, highest output and lowest price ... from our company. Product Features:1.Effective to sinter in low temperature. 2.Low fusion point. 3.Make the ...