China's homemade subsea oil drilling equipment put into use in Zhanjiang

China's first domestically developed submarine oil drilling equipment – subsea Christmas (Xmas) tree. It is <strong></strong>a core piece of equipment used in subsea production systems in the petroleum industry. (Photo/Courtesy of CNOOC)

China's first domestically developed submarine oil drilling equipment – subsea Christmas (Xmas) tree. It is a core piece of equipment used in subsea production systems in the petroleum industry. (Photo/Courtesy of CNOOC)

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