WASHINGTON (Reuters) - A U.S. congressional billthat would treat China's undervalued currency as a subsidy andwould slap duties on some Chinese imports is likely to passWednesday with bipartisan support, a key lawmaker said.

"This bill represents action ... My guess is it will notonly send a message, it will further equip our administration"to fight China's currency practices, Sander Levin, chairman of House Ways and Means Committee, told a panelsetting rules for the vote. (Reporting by Doug Palmer; editing by Mohammad Zargham)