plymon street was formerly Chai Jia Xiang. In order to facilitate the traffic between the urban area and the commercial port, Ji'nan opened a "small gate" in 1906. The Chai Jia lane, which is located in the door, is called "
", which is called "Ji'nan Chinese national goods company". However, the Municipal Archives Bureau does not have any record of this building, nor does the reporters find relevant information through other channels. Those who would like to know about the building situation provide relevant information.