The gases used in different types of welding would include 1 Oxygen and hydro

The gases used in different types of welding would include

1 Oxygen and hydrogen

2 Oxygen, acetylene and argon

3 Oxygen and acetylene

4 None of these

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The gases used in different types of welding would include 1 Oxygen and hydrogen 2 Oxygen, ace..

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(3) Oxygen and acetylene

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