Global Vinylidene Chloride Market By Type (Vinyl Chloride-Chlorine Process, Vinyl Chloride-Chlorine Hydride Process, 1,2-Dichloroethane-Chlorine Process, And Others), By Application (Polyvinylidene Chloride(Pvdc) Industry, Organic Synthesis Intermediates, And Others), By Region and Key Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Trends and Forecast 2019-2028