China has made significant breakthroughs in copper exploration on the Qinghai-Xizang Plateau over the past four years, with the discovery of more than 20 million tonnes of copper resources. #XinhuaNews
China has made significant breakthroughs in copper exploration on the Qinghai-Xizang Plateau over the past four years, with the discovery of more than 20 million tonnes of copper resources. #XinhuaNews