Hangyang is the manufacturer of the first air separation equipment in China. The output and sales volume of large and extra large air separation equipment is the first in the world. The 100000-grade air separation equipment of Shenhua Ningmei coal is known as the "big power heavy equipment", and the overall technology has reached the international leading level; The domestic market share of low-temperature petrochemical products such as ethylene cold box is leading. The project of "research and development and industrial application of complex raw material million-ton ethylene complete technology" won the first prize in the national science and technology progress award.