Workshop Technology
In permanent mould casting method

Molten metal is poured and allowed to solidify while the mould is revolving
Molten metal is poured in a metallic mould, retained in the mould long enough for the outer skin to solidify and finally mould is turned over to remove molten metal still in molten condition
Molten metal is forced into mould under high pressure
None of these

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Workshop Technology
Linde welding uses

Oxidizing flame and leftward technique
Neutral flame and rightward technique
Carburising flame and rightward technique
Neutral flame and leftward technique

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