CQYF is one of the biggest manufaturers of gas cylidners in China. Our products include seamless steel gas cylinder, CNG gas cylidners, and hoop-wrapped glass fiber. CQYF is the first company todevelop hoop-wrapped glasss fibermaterial cylinders in China. With strong technological strength and advanced equipment, we can assure you the best quality and service. specifications: Standard: ISO 11439, GB24160 Material: 30CrMo + glass fiber Nominal diameter: 325mm Water capacity: 50L 120L Nominal weight: 44kg 91kg Nominal height: 844mm 1748mm Service pressure: 200Bar Standard: ISO 11439, GB24160 Material: 30CrMo + glass fiber OD: 325mm Volume: 50L 120L Weight: 44kg 91kg Height: 844mm 1748mm Service pressure: 200Bar