 |
| |||
| back stitch | |||
| |||
| 100-percent penetrated weld; full penetrated weld | |||
| сплошной шов: 8 phrases in 8 subjects |
| Construction | 1 |
| Electrical engineering | 1 |
| Electronics | 1 |
| General | 1 |
| Mining | 1 |
| Oil and gas technology | 1 |
| Plastics | 1 |
| Shipbuilding | 1 |
|
| |||
| back stitch | |||
| |||
| 100-percent penetrated weld; full penetrated weld | |||
| сплошной шов: 8 phrases in 8 subjects |
| Construction | 1 |
| Electrical engineering | 1 |
| Electronics | 1 |
| General | 1 |
| Mining | 1 |
| Oil and gas technology | 1 |
| Plastics | 1 |
| Shipbuilding | 1 |