What is MIG welding/ GMAW /CO2 Welding in Hindi / English

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What' is mig

What is gmaw welding

What is mig welding

What is co2 welding

Kya he mig welding

What is mig

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)Which one of the below process should be followed during gas cutting
A) Oxygen valve is fully open B) Oxygen valve is partially open
C) Acetylene valve is fully open D) Acetylene valve is partially open...?

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