Guanshanhu District, Guiyang City. According to the information inquired by Baidu map, there are a large number of second-hand plastic steel doors and windows near No.351Baiyun Street in Guanshanhu District, Guiyang City, about 80% new. Guiyang generally refers to Guiyang city. Guiyang, referred to as Lincheng and Zhucheng for short, is a prefecture-level city, provincial capital and I-type big city under the jurisdiction of Guizhou Province, and one of the important central cities in Southwest China.