Shipwrights work at Hongshuangmu shipyard in Qingdao, east China's Shandong Province, Jan. 10, 2019. Hongshuangmu is one of the few remaining traditional hand-built shipyard in adjacent area. (Photos: Xinhua)

Shipwrights work at Hongshuangmu shipyard in Qingdao, east China's Shandong Province, Jan. 10, 2019. Hongshuangmu is one of the few remaining traditional hand-built shipyard in adjacent area.

A shipwright works at Hongshuangmu shipyard in Qingdao, east China's Shandong Province, Jan. 10, 2019. Hongshuangmu is one of the few remaining traditional hand-built shipyard in adjacent area.

Shipwrights work at Hongshuangmu shipyard in Qingdao, east China's Shandong Province, Jan. 10, 2019. Hongshuangmu is one of the few remaining traditional hand-built shipyard in adjacent area.

Photo taken on Jan. 10, 2019 shows a newly-built ship at Hongshuangmu shipyard in Qingdao, east China's Shandong Province. Hongshuangmu is one of the few remaining traditional hand-built shipyard in adjacent area.