A mock-up submarine sits in an open area in Shenyang City, Liaoning Province on Tuesday, December 18, 2018. The mock-up submarine, based on China's Qianlong-1, was built by a 40-year-old noodle restaurant owner named Shiguang. It took eight months and 500,000 yuan to build.

Shiguang sits in the cockpit of his mock-up submarine in Shenyang City, Liaoning Province on Tuesday, December 18, 2018.

The interior of the mock-up submarine in Shenyang City, Liaoning Province on Tuesday, December 18, 2018.

The propeller of the mock-up submarine in Shenyang City, Liaoning Province on Tuesday, December 18, 2018. (Photos: IC)