The special welding positioner adopts pipe-special welding machine for flange. it is special welding positioner.1. Dedicate design, high precise rotation, small inertia, ... trays, cylindrical body, etc.6. Fitted with welding operation machine, automatic welding is realized, and it can be the surrounding ... .751.5345.5Speed Regulating TypeFrequency Stepless Speed Regulation Special Welding Positioner