Employees assemble washing machines on the production line inside a factory of Hefei Rongshida Sanyo Electric in Hefei, Anhui province August 13, 2013. Whirlpool Corp's China unit has agreed to buy a 51 percent stake in a Chinese maker fridges and washing machines Hefei Rongshida Sanyo Electric , as the U.S. home-appliance manufacturer steps up presence in fast growing Chinese market. REUTERS/Stringer (CHINA - Tags: BUSINESS)