Shi Wen, chief engineer of the CAAA Caihong UAV Series introduces the CH-3 at the 2015 China Mining Congress and Expo held in Tianjin on Wednesday. [Photo by Chen Boyuan / China.org.cn]
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A Caihong-3 UAV was on display at the 2015 China Mining Congress and Expo held in Tianjin on Wednesday, marking the official launch of commercial services after two years of test flights and production.
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