automatic pipe welding equipment SAW,TIG, ... box, base, tailstock, welding slid seat support, lifting support and electronic control system.different welding modes, including ... welding fields, such as tube head welding, pipe-pipe welding and flange welding, etc. 2.Feature: ... of lifting plate 200mmMotor-driven(stepper),adjustable13Lifting support stroke50mmmanual14Turning angle of active head0-90°manual4 ...