The Magnum Group specializes in CAD drafting services for engineers and architects. We have thousands of hours of experience drawing architectural plans, architectural elevations, 3D visualizations of buildings, shop drawings, component drawings and electrical drawings. We have particular expertise in HVAC drafting: we lay out ducts, choose cross sections of ducts, we route ducts, pipes and cable trays. We do photorealistic renderings of concept drawings, we edit drawings in books. Come to http://themagnumgroup.net ... we have a special discount on at this time!