Workshop Technology
Linde welding uses

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

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Workshop Technology
Swab is used for

Smoothing and cleaning out depressions in the mould
Moistening the sand around the edge before removing pattern
Cleaning the moulding sand
Reinforcement of sand in the top part of the moulding box

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