| 1. | A constant current welding machine is used for manual metal arc welding.
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| 2. | The fire was caused by sparks from welding machines, the official said.
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| 3. | Can I find someone with a portable welding machine to fix it?
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| 4. | At Westinghouse, he was responsible for the development of magnetic pulse welding machines.
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| 5. | Other products include railway bridge inspection and repair vehicles and flash-butt welding machines.
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| 6. | A year later, the magnetic arc-welding machine came to the market.
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| 7. | Later, these converters were further developed into automatic welding machines.
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| 8. | Welders used keyhole welding machines rather than traditional welding guns.
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| 9. | Ultrasonic welding machines also have much more power now.
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| 10. | Ultrasonic welding machines require routine maintenance and inspection.
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