= Метали - заваряване 31 1 31
| [книга] |
| Welding — HIGH-TECH Technology in 21stcentury, Sofia, Bulgaria, October 21st-24th 2010 |
| |
| [Sofia : НТС по машиностроене |
| 2010] |
ISBN: | 978-954-9322-25-5 |
| |
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