Workshop Technology
The casting method adopted for ornaments and toys of nonferrous alloys, is

Slush casting
Centrifugal casting
Die casting
Permanent mould casting

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Workshop Technology
Riddle is used for

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

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