Shandong Tianhai High Pressure Vessel Co., Ltd. Was established on June 12, 2014. It is a joint venture between Beijing Tianhai Industrial Co., Ltd. And Shandong Yongan Heli Steel Cylinder Co., Ltd. And a professional pressure vessel production company affiliated to the listed company Beijing Stock Company. Professional production and sales of industrial oxygen cylinders, medical oxygen cylinders, carbon dioxide cylinders, argon cylinders, nitrogen cylinders, hydrogen cylinders, sulfur hexafluoride cylinders and other gas cylinder manufacturers.

The company is located in Hedong Industrial Park, Linyi City, Shandong Province. It covers an area of 200 mu and a building area of 56, 000 square meters. It has more than 500 employees, including 50 engineers and technicians, and has professional and technical personnel such as physical and chemical testing, non-destructive testing, material analysis, mechanical properties testing and testing. The company has the qualifications of producing seamless steel cylinders (industrial oxygen cylinders, medical oxygen cylinders, carbon dioxide cylinders, argon cylinders, nitrogen cylinders, hydrogen cylinders, sulfur hexafluoride cylinders), welding cylinders, steel inner liner ring wound cylinders and fire fighting cylinders. Oxygen cylinder factory plans to put into operation six production lines of seamless steel cylinders and set up production facilities. There are 80 sets of equipments and instruments for physical and chemical analysis, inspection, testing and various tests.

The company has always adhered to the development policy of "quality first, science and technology first, reputation first". According to the Basic Requirements of Quality Assurance System for Manufacturing, Installation, Renovation and Maintenance of Special Equipment, the company has implemented all-round quality management and established a quality, environment and occupational health management system that meets the requirements of IS09000, IS014000/OHSAA18000. Department, while ensuring the provision of high-quality products, pay more attention to environmental protection and physical and mental health of employees, to ensure the scientific, efficient, sustainable and healthy development of the company.