The main rooms of Cao Qing Lane Hardware & Electrical Plaza in Zhangjiagang are all 84 square meters. According to the website of second-hand shops in Zhangjiagang, we can find that the average price of the first-hand house in Cao Qing Lane Hardware & Electrical Plaza in Zhangjiagang is 1.4 million, and the area of the houses traded is 84 square meters. Zhangjiagang Cao Qing Lane Hardware & Electrical Plaza is located in the East Second Ring Road of Yang Shezhen, Zhangjiagang City, Suzhou City, Jiangsu Province, and is the largest hardware & electrical trading center in the area.