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Bloomberg Business News is reporting that Manitowoc Co., the heavy equipment maker that’s splitting itself in two, won a trade case to block Sany Heavy Industry Co.’s industrial cranes from the U.S. market.

Sany Heavy infringed a Manitowoc patent and stole trade secrets, the U.S. International Trade Commission said, according to a notice posted by the agency Thursday in Washington. The import ban can be overturned by the administration of President Barack Obama on public policy grounds.

Manitowoc, which built its first construction crane in the 1920s, claimed Sany Heavy hired away its top engineer in 2010 to copy the machines used to build wind turbines and nuclear plants, among other facilities. They are known as crawler cranes for the tank-like tracks they move on and are so big they need to be transported in pieces.