Answer; The biggest advantage of large diameter thick wall steel tube is that it can be recycled at 100%, which is in line with the national strategy of environmental protection, energy saving and resource saving. The national policy encourages the expansion of the application fields of high-pressure thick-walled pipes. ?

At present our country? ? Large-diameter thick-walled pipe manufacturer? The consumption of large-diameter alloy steel pipes in developed countries only accounts for half of the total steel products, and the expansion of the use of large-diameter alloy steel pipes provides a broader space for the development of the industry. According to the research of Alloy Steel Pipe Branch of China Special Steel Association, the demand for large-diameter alloy steel pipe talents in China will increase at the rate of 10- 12% every year in the future. (Small-diameter thick-walled seamless steel pipe)