A single auto engine parts maker shook South Korea's auto industry. One of the country's auto parts makers went on strike on May 18, resulting in suspended production of some models in top automaker Hyundai Motor and its affiliate Kia Motors.Workers at Yoosung Enterprise started a walkout on Wednesday last week after the management and the labor union failed to agree on working conditions and wages. Yoosung provides key engine parts such as piston rings, cylinder liners and camshafts for Hyundai, Kia, GM Korea, Renault Samsung Motors and Ssangyong Motor.Following 11 rounds of failed negotiation, unionized workers at Yoosung staged a sit-in and the management shut down two of its five factories in the nation in response to the labor dispute. Angry union members occupied production lines and...