Global Dimethylvinylchlorosilane Market By Type (96% Dimethylvinylchlorosilane, and ≥96% Dimethylvinylchlorosilane), By Application (Monomers of Silicone Polymers/resins, and Intermediates of Organosilicon Substances), By Region and Key Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Trends and Forecast 2019–2028