Global Colloidal Silica Market By Type (Alkaline Colloidal Silica, Acidic Colloidal Silica, Modified Colloidal Silica, and Ordinary Colloidal Silica), By Application (Investment Casting, Catalysts, Textiles & Fabrics, Refractories, Polishing (Electronic), and Paints and Coatings), By Region, and Key Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Trends and Forecast 2019-2028