| 1 | We prefer welding to riveting. | |
| 2 | We prefer welding to riveting. | |
| 3 | Do not watch welding processes unless your eyes are properly protected. | |
| 4 | The most widely used industrial welding method is arc welding. | |
| 5 | Spiral-welded steel pipe is available in sizes from 6to 36 inches. |
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