TOTAL STRUCTURES Designers and manufacturers of industry-compatible truss, ground support and outdoor roof systems, new Intelligent Pre-Rig, XO truss, and custom constructions, all to approved engineering standards. For use in live performance, trade show, film and television worldwide. Distributors of CM chain hoists and Skjonberg Controls. total structures, inc., 1696 Walter St., Ventura, CA 93003. phone: (805) 676-3322; fax: (805) 676-161; email: website: