Hangzhou Iron & Steel. 

Hangzhou Iron & Steel Co., Ltd., a Chinese company, primarily engages in the production and sale of diverse steel goods across China. Its extensive product portfolio includes specialized steels such as carbon and low-alloy structural steel, cold-rolled or deep-drawn low-carbon steel, and tailored steels for pipelines, automotive, container, shipbuilding, and bridge applications. The offerings also extend to checkered plates, various other steel variants, and hot-rolled coils. Beyond its primary steel operations, the firm also plays a significant role in environmental services, covering industrial wastewater processing, urban water provision, integrated environmental equipment solutions, and sludge handling. Established in 1957, the company is headquartered in Hangzhou, China.