Core Viewpoint - The commencement of the Suwan-Puyu gas pipeline marks a significant step in China's national oil and gas infrastructure development, indicating a new phase in the construction of a unified national gas network [1] Group 1: Project Details - The Suwan-Puyu gas pipeline is the first national key oil and gas pipeline project to start construction during the "14th Five-Year Plan" period [1] - Alongside the Suwan-Puyu pipeline, two other major projects, the W23-Anqing gas pipeline and the Shandong North Trunk Line, also began construction today in Anhui and Shandong respectively [1] - The total investment for the three projects exceeds 30 billion yuan, which is approximately 4.6 billion USD [1] Group 2: Impact on Infrastructure - The completion of these projects is expected to significantly enhance the pipeline density and interconnectivity in China's central and eastern regions [1]