Design, computer lofting, and kits for welded aluminum boats. specmar inc (previously specialty marine contractors) is an aluminum boat design, lofting, and kit company.. Viking welding services. we are a small, production runs, welded aluminum boat building, as well as general, industrial, marine, and construction welding.. We build one of the safest, most durable welded aluminum boats on the water. what sets henley apart from other aluminum boat building companies.
