| 25500 | Alloy and steel forging roll (manufacture) |
| 25500 | Closed die forging (manufacture) |
| 25500 | Cold pressing of base metals (manufacture) |
| 25500 | Cold stamping of base metals (manufacture) |
| 25500 | Die forging of ferrous metals (manufacture) |
| 25500 | Drop forging of ferrous metals (manufacture) |
| 25500 | Drop stamping of base non-ferrous metals (manufacture) |
| 25500 | Drop stamping of ferrous metals (manufacture) |
| 25500 | Engineers' stampings and pressings of base non-ferrous metals (manufacture) |
| 25500 | Engineers' stampings and pressings of ferrous metals (manufacture) |
| 25500 | Forging (manufacture) |
| 25500 | Hammer forging of steel (manufacture) |
| 25500 | Heavy forging (manufacture) |
| 25500 | Hot pressing of ferrous metals (manufacture) |
| 25500 | Hot stamping of ferrous metals (manufacture) |
| 25500 | Metal forging, pressing, stamping and roll-forming (manufacture) |
| 25500 | Metal objects production directly from metal powders by heat treatment (manufacture) |
| 25500 | Perforated metal (manufacture) |
| 25500 | Piercing of base metal (manufacture) |
| 25500 | Powder metallurgy (manufacture) |
| 25500 | Pressing of base metal (manufacture) |
| 25500 | Rolls made of alloy or steel forgings (manufacture) |
| 25500 | Sintering of metals (manufacture) |
| 25500 | Stamping of base metal (manufacture) |
| 25500 | |