1)Oxygen cylinder . 2)Filling Medium: Oxygen, hydrogen, argon, air, carbon dioxide etc. 3)Materialr: Auminum 6061. Oxygen cylinder is made of superior quality aluminum 6061 and manufactured through the procedures of punching, drawing, heat treatment, CNG flow forming spinning, anodic various kinds of gases, such as rare gases, high purity gases, standard gases, special gases, with a wide range of ...