What certificates has Jinding petroleum obtained?

Our company has successively obtained the A2 / A3 class pressure vessel design, manufacturing, field assembly and welding license issued by the General Administration of quality supervision, inspection and Quarantine of the people's Republic of China, with the license numbers of ts1210184-2016 and ts2210443-2017 respectively; the GC2 class pressure pipeline installation, transformation and maintenance license issued by Dalian Municipal Bureau of quality and technical supervision, with the license numbers of ts3821331-2019; and the ASME authorized by the American Society of mechanical engineers U. U2 certificate; the work safety license issued by Liaoning Provincial Department of housing and urban rural development, with the license number of (Liaoning) JZ safety license [2014] 008960; the grade III professional contracting of mechanical and electrical equipment installation engineering, with the license number of b3184021028206, issued by Dalian Urban Rural Construction Commission, has obtained the ISO9001 quality management system certification and OHSAS18001 occupational health and safety management system certification ISO14001 environmental management system certification.