Global Electric Overhead Travelling Crane Market By Type (Single Girder Cranes, Double Girder Bridge Cranes, Gantry Cranes, and Monorails), By Application (Construction & infrastructure Industry, Mining Excavation industry, Metallurgy, Shipping & boarding Industry, Automotive, Oil & Gas Industry, and Other), By Region, and Key Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Trends and Forecast 2020-2029