Is Building 3, No.86 Yinquan Road, Tangquan Street, Pukou District, Nanjing the city center?

It's downtown. Pukou District, located in the northwest of Nanjing, is an important medical base in China, an advanced manufacturing base in East China, a science and education base, and an important area radiating from northern Jiangsu and eastern Anhui. Building 3, No.86 Yinquan Road, Tangquan Street, Pukou District, Nanjing, is a downtown area. Pukou District, also known as Jiangpu, Xuanhua and Pu Tian, is the gateway to Jinling. It is located in the northwest of Nanjing, Jiangsu Province.