Lanzhou Petrochemical General Hospital, also known as Tianhao Hospital Affiliated to Lanzhou University, is a modern comprehensive third-level B hospital. It was established on February 27, 2006. Its predecessors were Lanlian Hospital and Lanhua Hospital. Hospital. Undertakes the clinical teaching tasks for undergraduates and college students of Lanzhou University and provincial and municipal medical schools. It is responsible for the medical care of nearly 400,000 employees and their families of petrochemical enterprises, as well as urban and rural workers, factories and mines in western Lanzhou City.