1. Institute of Safety Assessment and Integrity, State Key Laboratory for Performance and Structure Safety of Petroleum Tubular Goods and Equipment Materials, Tubular Goods Research Center of CNPC, Xi’an 710077, China
2. China Promotion Association for Special Equipment Safety and Energy-Saving, Beijing 100029, China
3. The Third Oil Transportation Department of Changqing Oilfield Branch of China National Petroleum Corporation, Ningxia 750006, China
4. Shaanxi City Gas Industry Development Co., LTD., Xi’an 710000, China