DUESSELDORF/FRANKFURT, June 2 (Reuters) - Salzgitter,

Germany's second-biggest steelmaker, on Monday warned that

Washington's tariff policy was dealing a severe blow to European

industry, its CEO said after the U.S. administration unveiled

plans to double steel import levies to 50%.

"An increase in steel import duties in the USA to 50% should

prompt the EU Commission to accelerate its efforts to implement

the measures under the Steel and Metals Action Plan," Gunnar

Groebler said.