Maintenance crew members assigned to a regiment of the air force under the PLA Southern Theater Command perform phase maintenance on the fan frame of a HU-6 aerial tanker in early May, 2017. (81.cn/Yang Qingguang)
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Maintenance crew members assigned to a regiment of the air force under the PLA Southern Theater Command perform phase maintenance on the fan frame of a HU-6 aerial tanker in early May, 2017. (81.cn/Yang Qingguang)