Truck accessories, trailer hitches, SUV electrical accessories. Trailers, running boards, van bicycle accessories. Mann s Welding specializes in trailer hitches, truck accessories tow bars. Manns Welding is Currently Under Constuction . If you are interested in Truck Accessories, Trailer Hitches, Trailers or any welding fabrication please or call us at . same location in North Seattle for 34 years. The business was started by Jim Mann, a focused and committed entrepreneur. He began the trade in 1956 by helping his boss build a similar business. Jim rapidly gained experience building custom bumpers and trailers, installing trailer hitches and accessories that are related to the recreational vehicle industry. on to his three sons was realized. Through his hard work and determination, the company has grown to be an icon in the greater Seattle area. Manns aspires to pass on their experience and knowledge to their customers, aiding them in making wise and cost effective decisions regarding their Unauthorized reproduction of material on this site is strictly prohibited.