1.

Have you seen machines used in a factory? Make a collage of different kinds of machines that are used.

Answer»

I have seen a welding factory. Machines in the factory are : 

1. arc welding 

2. resistance welding 

3. laser welding 

4. electron bean welding 

5. stud welding 

6. orbital welding 

7. wave soldering 

8. hot dip brazing 

9. torch brazing

10. indution brazing 

11. ultrasonic 

12. friction welding



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