Steel seamless gas cylinders are supplied Shandong China specializes in the production of various types of seamless steel cylinders, which can contain oxygen, nitrogen, argon, helium, carbon dioxide, air, ethylene, SF6, mixture, IG01,IG55,IG100,IG541 and other gases, the working pressure is 150bar, ISO9809,TUV,UL,CCS Seamless Cylinders. 1liter- 90litreã?? 6061 Aluminum Alloy Gas Cylinder, Liquid oxygen, liquid nitrogen, liquid argon, Dewa Tank, If you have any need, please email us, or contact our whatsapp, we will provide you with efficient service and price.