What is buried underground in Lanjiang Yayuan?

Lanjiang Yayuan is buried with natural gas and a basement. According to the relevant information, Lanjiang Yayuan has arranged the underground area planning when it was under construction, and only natural gas and the inner layer of the basement were buried underground. Lanjiang Yayuan, located in Daping, Yuzhong, Chongqing, was built by Chongqing Jiujiu Real Estate Development Co., Ltd., with a total construction area of 100000, a total area of 52000 and 698 houses. The residential property company is Chongqing Yuxuan Property Management Co., Ltd..