An angle grinder is set in a steel dome for a deaerator at Alstrom Heat Transfer LLC facilities in the Bronx borough of New York, U.S., on Thurdsay, Dec. 15, 2011. U.S. industrial production unexpectedly dropped in November for the first time in seven months, an indication of a pause in manufacturing as 2011 comes to a close. Photographer: Scott Eells/Bloomberg
C&J Mechanical Services LLC 
