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| Serial No. | Type | Nominal working Pressure | Water test pressure | Volume | Design wall thickness | Nominal Outer Dia. | Length | Weight | Material for cylinder | Carry out standard |
| 1 | CNP20-20-232A | 20 | 30 | 20 | 5.5 | 232 | 640 | 27 | 34CrMo4 | ISO11439 |
| 2 | CNP20-25.5-232A | 20 | 30 | 25.5 | 5.5 | 790 | 32 | 34CrMo4 | ||
| 3 | CNP20-28-232A | 20 | 30 | 28 | 5.5 | 850 | 35 | 34CrMo4 | ||
| 4 | CNP20-34-232A | 20 | 30 | 34 | 5.5 | 1035 | 40 | 34CrMo4 | ||
| 5 | CNP20-50-356A | 20 | 30 | 50 | 7.5 | 356 | 708 | 62 | 34CrMo4 | |
| 6 | CNP20-57-356A | 20 | 30 | 57 | 7.5 | 785 | 68 | 34CrMo4 | ||
| 7 | CNP20-65-356A | 20 | 30 | 65 | 7.5 | 875 | 74 | 34CrMo4 | ||
| 8 | CNP20-70-356A | 20 | 30 | 70 | 7.5 | 930 | 79 | 34CrMo4 | ||
| 9 | CNP20-77-356A | 20 | 30 | 77 | 7.5 | 1015 | 85 | 34CrMo4 | ||
| 10 | CNP20-90-356A | 20 | 30 | 90 | 7.5 | 1165 | 99 | 34CrMo4 | ||
| 11 | CNP20-113-356A | 20 | 30 | 113 | 7.5 | 1415 | 115 | 34CrMo4 | ||
| 12 | CNP20-120-356A | 20 | 30 | 120 | 7.5 | 1500 | 119.5 | 34CrMo4 | ||
| 13 | CNP20-130-356A | 20 | 30 | 130 | 7.5 | 1625 | 128 | 34CrMo4 | ||
| 14 | CNP20-150-356A | 20 | 30 | 150 | 7.5 | 1835 | 145 | 34CrMo4 | ||
| 15 | CNP20-80-406A | 20 | 30 | 80 | 8.8 | 406 | 886 | 98.3 | 34CrMo4 | |
| 16 | CNP20-85-406A | 20 | 30 | 85 | 8.8 | 928 | 101.8 | 34CrMo4 | ||
| 17 | CNP20-90-406A | 20 | 30 | 90 | 8.8 | 971 | 106.2 | 34CrMo4 | ||
| 18 | CNP20-95-406A | 20 | 30 | 95 | 8.8 | 1014 | 110.7 | 34CrMo4 | ||
| 19 | CNP20-100-406A | 20 | 30 | 100 | 8.8 | 1057 | 115.1 | 34CrMo4 | ||
| 20 | CNP20-110-406A | 20 | 30 | 110 | 8.8 | 1142 | 123 | 34CrMo4 |
CNG-2 cylinder