What is the core of petroleum spirit?

Some hard work. Petroleum spirit is the China oil worker represented by "Iron Man" Wang Jinxi in the early days of the founding of New China. In the process of oil exploitation and refining, the out-and-out spirit of China has been integrated into the process of oil exploitation and refining, forming a spirit with industry characteristics. Some hard work is an important part of petroleum spirit and the soul and foundation of petroleum and petrochemical industry.