Global Erw Steel Pipes And Tubes Market By Type (Large Diameter-Above 6 Inch Dia, and Small Diameter-Below 6 Inch Dia), By Application (Oil and Gas, Automotive, Boiler and Heat Exchanger, Irrigation & Water Treatment, and Other), By Region, and Key Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Trends and Forecast 2020-2029