... head including the bar dropper assembly, plug valve,active part, active elbow, etc. We now have different types, such as single wing ... follows: Specifications & types: Specifications & main parameters of the single (double) wing well head control head Type And Pressure1-12″2″3″35MPa ---42MPa ... .com/For any queries, pls feel free to contact us! Single (Double) Wings Wellhead Control Head