6 steel and metal products, namely, black square tubing, painted square tubing, black rectangular tubing, painted rectangular tubing, fence posts, "C" structural purlin, "Z" structural purlin, black round tubing, painted round tubing, galvanized square, rectangular or round tubing, hot rolled steel coils or sheets, cold rolled steel coils or sheets, galvanized panels, special steel shapes made of cold or hot rolled steel, galvanized steel coils or sheets, and repainted steel coils or sheets