Global Harmonic Drive Gear Market By Type (Cup Style , Hat Style , and Pancake Style), By Application (Industry Robot , Semiconductor Manufacturing Systems , Flat Panel Display Manufacturing System , Machine Tools , Optical Machine , Printing , Bookbinding and Paper Machine , Metal Working Machine , Medical Equipment , Space Equipment , Others (Humanoid Robot , and Telescope etc.)), By Region, and Key Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Trends and Forecast 2020-2029