Bellows welding necessary machinery - Chase hole welding positioner, a good reputation through the installation of efficient low-cost through-hole solder chuck, quick loading and unloading, reducing welder labor intensity and improve work efficiency. Through-hole welding positioner necessary machinery - Chase hole welding positioner, low-cost and efficient advantage of the good reputation of another welding chuck with large through-hole, with my company through hole welding positioner, which makes welding long tube with the flange butt, as long as the diameter of the tubes pass through holes from the past, it will not affect the length of the pipe welding. Welding, convenient protection gas into the inner tube, to improve the efficiency and quality of welding through holes welding positioner - Chase hole welding positioner is mainly used in a variety of shaft, flip the disc type, circular, annular workpiece back transition bit to get ideal processing position and welding speed. Workpiece displacement ring can be used for manual welding, assembly, repair and other occasions welding seam, is also commonly used operating machines, welding machines and other equipments, compose the automatic welding center; suitable for manual workpiece welding, assembly, repair and other occasions Variable bit circular welding seam.