SUMMARY: Lay out, position, align, and secure parts and assemblies prior to assembly, Weld together metal components of products such as piping systems, plates, pipes, and tube or structural shapes, as specified by layout, blueprints, diagram, work order, welding procedures, or oral instructions, using electric arc-welding equipment. GrayWolf is a heavy industrial/commercial construction contractor that provides end-to-end solutions from design, fabrication, construction, and facility management with a footprint that is nationwide.