A.M.Zabelin.

Complex includes moving device, platform with disposed on it independent power station, control system, technological laser, additional equipment, exterior beam duct, shop of beam ducts with disposed on them, intended for welding, tubes, device of tubes contraction to the pipeline, supports for fixing and centering of the pipeline end. New in construction of laser complex is the presence of second technological laser, providing welding of a ring seam on the outside. This ensures two-sided laser welding. The first is the interior radical seam and further- outside. The two-sided laser welding will provide quality welded joint, and also will allow to join tubes of major thickness.