Global Triethylene Glycol Market By Type (Purity 98.2% , Purity 98.5% , and Purity 99.99%), By Application (Air Disinfectant , Plasticizer of Rubber and Resins , Inks , Coatings & Paints , and Adhesives), By Region, and Key Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Trends and Forecast 2020-2029