| user | Prcmaker |
| created | Jan 19, 1970 |
| karma | 441 |
| about | Mechanical engineer, R&D. Formerly radiation equipment developer and optics researcher. |
| user | Prcmaker |
| created | Jan 19, 1970 |
| karma | 441 |
| about | Mechanical engineer, R&D. Formerly radiation equipment developer and optics researcher. |