Wu Zhengxiong poses for a photo inside a model of a bus he made in Wenzhou, East China's Zhejiang province, Aug 14, 2019. [Photo/VCG]

Wu Zhengxiong, a post-80s man from Wenzhou, East China's Zhejiang province, taught himself steel engraving.

After graduating from a technical secondary school, he taught himself art and welding.

Models of insects, an Apache helicopter, locomotive and even the Eiffel Tower... In his skillful hands, copper, iron and steel scraps get a second chance at life.