... Working pressure: 150BarTest pressure: 250BarLength: Apr.1344Standard: ISO9809, GB5099 Chongqing Yifeng High Pressure Container Co., Ltd is a professional cylidner manufacturer in ... , ISO9809, EN1964, DOT-3AA, JISB 8241, GB5099, GB17258, GB24160, etc. Chongqing Yifeng Cylinders have been certified by international authoritative inspection bodies ...