The measure aims to close a loophole that officials said allowed metals made partly in China to come into the United States duty free.The measure aims to close a loophole that officials said allowed metals made partly in China to come into the United States duty free. Steel and Iron, International Trade and World Market, United States Politics and Government, Customs (Tariff), United States International Relations, Metals and Minerals, Factories and Manufacturing, Biden, Joseph R Jr Read More