Global Barium Hydroxide Octahydrate Market By Type (≥98.5, ≥97.5, ≥97.0, ≥96.0, Others), By Application (Water Treatment Industry, Petroleum Industry, Electronic Industry, Food Industry, Resin Stabilizer, Pharmaceuticals, and Others), By Region, and Key Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Trends and Forecast 2020-2029