The U.S. International Trade Commission on Wednesday ruled that the domestic aluminum extrusion industry is not being harmed by imports from 14 countries, foreclosing the possibility of new antidumping and countervailing duty orders sought by a coalition of domestic producers and the United Steelworkers. The Commerce Department earlier this year issued final affirmative determinations in a set of antidumping probes into aluminum extrusion imports from China, Colombia, Ecuador, India, Indonesia, Italy, Malaysia, Mexico, South Korea, Taiwan, Thailand, Turkey, United Arab...