Liang Qiu, a fitter, is called Gu Liangsi at home because of his high assembly accuracy.

Assembly of deep-sea manned submersible in China.

Jiaolong manned submersible is the deepest manned submersible in the world at present, and its development is as difficult as aerospace engineering. In this highly sophisticated and important technical research, there is an ordinary locksmith. He is Gu, an employee of the Underwater Engineering R&D Department of the 702nd Research Institute of China Shipbuilding Industry Corporation, and the general assembly fitter of Jiaolong manned submersible.

10 For more than 0 years, Gu led the whole team to complete dozens of pool tests with good quality and quantity, and during the sea trials, he assembled and integrated the Xiaolong, and disassembled and repaired the Xiaolong parts. He also worked with scientific and technical personnel to solve the technical problems encountered in the sea trials, demonstrating his loyalty and love for the cause of manned deep diving in the motherland with practical actions.

As the chief fitter technician, it is common to face technical problems in work. Every time Gu can see the move, he relies on the spirit of "screw" developed by his work for more than 40 years. He likes to ponder and study carefully, and he likes to gnaw at the "hard bones" in his work. He always racked his brains to think about how to improve installation methods and tools, improve installation accuracy and ensure high-quality installation tasks.

It is with this passion that Gu has developed a strong ability to innovate and solve technical problems in his work and successfully completed various high-tech, difficult and high-level engineering installation and debugging tasks. Gu, who is nearly sixty years old, still sticks to the front line of scientific research and production, silently contributing to the deep blue miracle of China and even the world for manned deep diving. Now, he shoulders a new challenge-assembling a 4500-meter manned submersible.