Yantai Hongyuan Oxygen Industrial Inc. was founded in early 1998,after more than 20 years of hard work, Hongyuan has developed into a leading enterprise in the same industry. The company is mainly engaged in design, manufacture and installation of pressure vessels for human occupancy such as medical oxygen chambers and decompression chambers etc.Hongyuan has obtained ASME, ISO: 9001, ISO: 13485 certification, and has exported the product to Vietnam, Philippines, Egypt, Nigeria, Congo (Gold) and other countries. With the rapid development of China's hyperbaric oxygen clinical medical application,Hongyuan has established a sound product system and R&D clinical application technology to meet actual needs,and become a stable equipment supplier for hospitals, military, commercial diving, etc. – We have provided more than 2,000 sets medical hyperbaric oxygen chambers to various users. – We are the only oxygen chamber and diving decompression chamber equipment supplier for the Chinese army. – We are the designated supplier for commercial diving equipment such as CNOOC and the salvage bureau of theMinistry of Transportation. – We are the air pressure transition chamber( manlock) main supplier for China Tunnel Engineering Equipment. – We provide one-stop solution, perfect after-sales service system