The main products include: Cryogenic liquid storage tanks, liquid oxygen, liquid argon liquid nitrogen, liquid carbon dioxide, LNG storage tanks, customized non - standard pressure vessels, heating, ventilation and heat-exchange equipment, heat exchangers, and heat -exchange units. The main production equipment includes: Large - scale laser cutting machines, P +T automatic welding machines, upper - roll universal three - roll plate bending machines submerged arc automatic welding machines and other advanced manufacturing equipment. There are also non - destructive testing equipment such as helium leak detectors, X - ray non -destructive flaw detectors, and ultrasonic flaw detectors.