Workshop Technology
During hot working of metals

Porosity of the metal is largely eliminated
All of the listed here
Mechanical properties are improved due to refinement of grains
Grain structure of the metal is refined

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Workshop Technology
A progressive limit gauge has

None of the listed here
'Go' and 'Not go' member on the same side of the gauge
'Go' member at one end and 'Not go' member at the other end
Separate 'Go' and 'Not go' members

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