Chengdu Holy has been engaged in cryogenic application industry for 30 years. Through a large number of international project cooperation, Chengdu Holy has established a set of Enterprise Standard and Enterprise Quality Management System based on the international standards of Vacuum Insulation Piping System. The Enterprise Quality Management System consists of a Quality Manual, dozens of Procedure Documents, dozens of Operation Instructions and dozens of Administrative Rules, and constantly update according to the actual work.

During this period, a set of production and inspection equipment and facilities, which meet the international standards of Vacuum Insulation Piping System, have been established. As a result, Chengdu Holy has recognized by several the largest international gas companies (including Linde, Air Liquide, Messer, Air Products, Praxair, BOC etc.).

  Chengdu Holy obtained the ISO9001 certification for the first time in 2001, and timely recheck the certificate as required.

  Obtain ASME qualification for Welders, Welding Procedure Specification (WPS) and Non-destructive Inspection in 2019.

  The ASME quality system certification was authorized to Chengdu Holy in 2020.

  The CE Marking Certificate of PED was authorized to Chengdu Holy in 2020.