... and store CNG; 2.4130X, 25Mpa, 8 tubes, 4540NM3; 3. ISO11120 standard,BV; 8 Tubes CNG daughter station TrailerCylinder diameter: OD559mmMaterial: 4130XCylinder ... filling stationand daughter filling station, loading capacity of CNG 4540M^3. 3 CNG daughter station trailer, 8 tubes, 20Mpa