Manufacturing And Production Technology
A type of welding flows, which is the result of a perfect proportion and mixture of acetylene and oxygen and is used for fusion welding of steel and cast iron, is

Oxy-acetylene flame
Oxidizing flame
Carburizing flame
Neutral flame

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Manufacturing And Production Technology
Glazing in grinding wheels takes place when the

Wheel is too soft and wheel revolves at a very high speed
Wheel is too hard and wheel revolves at very slow speed
Wheel is too soft or wheel revolves at a very slow speed
Wheel is too hard or wheel revolves at a very high speed

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