Detailed Product Description The seamless aluminum alloy gas cylinder is made of superior quality aluminum alloy ***1 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 applications in the chemical industry, electronic industry, medical treatment, gas and coal mining fields, which is the ideal substitute for the steel cylinder. technical parameter Temperature Range: **0 ~ *0 oC Filling Medium: Oxygen, hydrogen, argon, air, carbon dioxide etc Materialr: Duralumin ***1