WASHINGTON -- U.S. President Donald Trump's tariffs on specific sectors are gradually widening, particularly steel and aluminum duties -- which now include beer cans and some appliances -- leading to concerns about further unchecked expansion.

Washington began imposing 50% steel and aluminum tariffs on major appliances like laundry machines, refrigerators, dishwashers and microwaves on Monday. These goods are considered to be derived from steel and aluminum, and the duties are levied on their content of those metals.