In the summer of 2021, the pipe network is particularly bright orange. The main responsibility of the National Pipeline Network Company is to be responsible for the investment and construction of national oil and gas trunk pipelines and some gas storage peak-shaving facilities, and for the interconnection of trunk pipelines and social pipelines, forming a "national network", responsible for crude oil, refined oil, and natural gas. It is also responsible for the operation and scheduling of the national oil and gas trunk pipeline network, and regularly discloses the remaining pipeline transmission and storage capacity to the public, so as to realize the fair opening of the infrastructure to all qualified users. Editor/Sang Xiaomei