Mackson. is a privately held supplier of fasteners, structural steel, weld wire, fabrications, pipe, tubing, fittings, flanges, and related products in chrome-alloy steel, stainless steel, carbon steel and nickel alloy steels primarily servicing the global nuclear power generation business. The Company has been in business for over 40 years and is one of the top material suppliers for Nuclear Power Generation. Mackson operates from its warehouse ...