Global Ferric Sulphate and Polyferric Sulphate Market By Type (Ferric Sulphate, and Polyferric Sulphate), By Application (Municipal & Domestic, Power Generation, Oil & Gas, Chemicals, Mineral & Metallurgy, Food & Beverages, Pulp & Paper, and Others), By Region and Key Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Trends and Forecast 2019-2028