Prepares surfaces to be welded, fits parts, welds piping and manifolds  Cut, grind, drill holes and weld steel to blueprint specifications. May use plasma cutter to cut I-beams and steel plates. Tack welds scrap metal to outline to provide jig for assembly. Position parts in jig and files, chisels, and grinds parts, as indicated, to weld them together. Anneals parts with acetylene torch to remove stresses of welding. Follow blueprints and product specifications to bend, shape and fabricate manifold tubing system. Cut and clean and purge tubes, valves and manifolds, align and secure in place for welding. Align Orbital welder for "weld in place" fastening of valves and bull plugs into tube bushing manifold. Using TIG welder, weld valves and hardware into tube bushing manifold of new and used chassis; truck trailer and ISO skid parts. Looking for: Mig welder. Material that needs to be welded go from 3/16” to ½” steel. Structural tubing