Lanzhou Renai Hospital. Lanzhou Renai Hospital uses advanced diagnostic and treatment equipment and methods to accurately observe and judge the ring removal, which greatly improves the accuracy of the operation. Therefore, Lanzhou Renai Hospital in Yantan Xingang City, Lanzhou can perform ring removal. Gansu Renai Obstetrics and Gynecology Hospital is a modern obstetrics and gynecology hospital integrating clinical medical care, preventive health care, and rehabilitation services.