JINAN DEYANG include two company: Jinan Deyang Cryogenic Technology Co.,Ltd and Jinan Deyang Special Gas Co.,Ltd. Since 2002,we had been engaged in the R&D, manufacturing,sales and services of welded insulated cryogenic cylinder (Dewar Flask) and all kinds of high purity gases,rare gases,cryogenic liquefied gases and industrial gases etc. We mainly suply:  Gases – Deyang Special Gas 1) High Purity Industril Gas: Hydrogen,Nitrogen,Oxygen,Acetylene,Carbon monoxide, Carbon dioxide,Sulfur dioxide,Nitrous oxide,Nitric oxide,Sulfur fluoride, Hydrogen sulfied,Ammonia, Chlorine,Hydrogen chloride,Carbon oxysulfide, Carbon fluoride 2) Rare Gas: Argon,Helium,Neon,Krypton,Xenon 3) Liquid Gas: Liquid oxygen,Liquid argon,Liquid nitrogen,Liquid  Cylinder – Deyang Cryogenic Technology 1) Welded insulated cryogenic cylinder (Dewar Flask) 2) Vaporizer and the accessories. 3) Gas supply system and vacuum piping system 4) Cryogenic submersible pump & poston pump & centrifugal pump