Global Frozen Glutinous Rice Ball Market By Type (By Stuffing: Black Sesame , Fruit , Synear , Brown sugar , Nuts , Red Bean Paste , Meat , Rose Petal , By Size: Standard Size , and Mini Size), By Application (Restaurants and Hotels , Schools and institutions , and Households), By Region, and Key Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Trends and Forecast 2020-2029