Zhuanglang road, xigu district. Lanzhou, referred to as "Lan" or "Gao", was called Jincheng in ancient times. It is the capital of Gansu Province, the center of politics, culture, economy, science and education, and an important central city in the western region. The State Council is approved as the capital of Gansu Province, and there is a mirror cutting shop on Zhuanglang Road in Xigu District, with superb technology.