Tianjin Pengzhan Steel Pipes has had ISO 9001 Quality Management System Certification since 2004 and is also certified to ISO 14001 for Environmental Management Systems.  Our company also has a number of other certifications that includes Chinese Standard SY/T5037-2000 (Certification for Low Pressure Fluid Pipelines), Chinese Standard GB/T9711.1 – Levels A1 & A2 (Certification for Petroleum and Natural Gas Pipelines) and American Petroleum Institute certification for API 5L (PSL1/PSL2) pipe. Tianjin Pengzhan Steel Pipes holds a Certificate of Conformation from the CNPC for its HSE Management System and is also certified to Chinese Standard GB/T28001-2001 (Occupational Health and Safety Management).