2017-09-29 10:57:23|Editor: An
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Tractors harvest on the paddy field of Nongjiang Farm in northeast China's Heilongjiang Province, Sept. 28, 2017. (Xinhua/Wang Jianwei)
![](http://www.cnchemicals.com/)
Tractors harvest on the paddy field of Nongjiang Farm in northeast China's Heilongjiang Province, Sept. 28, 2017. (Xinhua/Wang Jianwei)
![](http://www.cnchemicals.com/)
Tractors harvest on the paddy field of Nongjiang Farm in northeast China's Heilongjiang Province, Sept. 28, 2017. (Xinhua/Wang Jianwei)
Tractors harvest on the paddy field of Nongjiang Farm in northeast China's Heilongjiang Province, Sept. 28, 2017. (Xinhua/Wang Jianwei)