Global Definite Purpose Contactors Market By Type (1-Pole Definite Purpose Contactors , 2-Pole Definite Purpose Contactors , 3-Pole Definite Purpose Contactors , and 4-Pole Definite Purpose Contactors), By Application (HVAC , Air Conditioning , Compressors , Laundry , and Heaters), By Region, and Key Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Trends and Forecast 2020-2029