Industrial Gear Market (By Product Type: Spur Gear, Planetary Gear, Helical Gear, Rack and Pinion Gear, Worm Gear, Bevel Gear, Others; By Application: Oilfield Equipment, Mining Equipment, Industrial Machinery, Power Plants, Construction Machinery, and Others; By Distribution Channel: Online and Offline) - Global Industry Analysis, Size, Share, Growth, Trends, Revenue, Regional Outlook and Forecast 2021-2030