Seamless steel for natural gas storage and transportation equipment
| Applications | grade | Standard sizes |
|---|---|---|
| Industrial gas cylinder | 37Mn | Φ219/232/267/279 |
| Compressed Natural Gas Cylinders | 34CrMo4/35CrMo | Φ325/356/406 |
| long tube trailer | SA519-4130X/4142 | Φ559/660/711 |