... CYLINDER Material: 37Mn Steel tube Standard: ISO9809, GB5099 We are dedicated to provide first-class cylinder Industrial ... pressure: 150BarTest pressure: 250BarLength: Apr.1344Standard: ISO9809, GB5099 Chongqing Yifeng High Pressure Container Co., Ltd is a professional ... to ISO11439, ISO9809, EN1964, DOT-3AA, JISB 8241, GB5099, GB17258, GB24160, etc. Chongqing Yifeng Cylinders have been certified ...