1988 what level does Hangzhou iron and steel plant belong to?

1988 Hangzhou iron and steel plant is a state-owned enterprise, and Hangzhou iron and steel group company was established in 1957. After 57 years of development, it has become a large-scale enterprise group with iron and steel as its main business and coordinated development of real estate, trade, environmental protection, hotel catering, higher vocational education, scientific research and design, and is now managed by the State-owned Assets Supervision and Administration Commission of Zhejiang Provincial People's Government.