A worker drives a tractor off the production line of YTO Group Corporation in Luoyang, central China's Henan Province, May 9, 2017. In 1958, China's first caterpillar tractor "Dongfanghong" was manufactured in Luoyang Tractor Factory, marking the first step of China's tractor industry. In the past six decades, the factory which renamed as YTO Group Corporation has produced 3.31 million tractors and 2.45 million power machines. (Xinhua/Li An)
