A recalled high-speed CRH380BL train stops at the Hongqiao High-speed Trains Center for a technical overhaul in Shanghai, August 16, 2011. China CNR Corporation Ltd, one of the country's largest train producers, has recalled 54 high-speed trains used on the Beijing-Shanghai high-speed railway out of safety concerns. It began a technical overhaul in Shanghai starting on Tuesday. [Photo/Xinhua]