Workshop Technology
A pattern maker's shrinkage rule considers

All materials of the pattern
Only shrinkage allowance
All pattern allowances
All materials to be cast

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Workshop Technology
Lancing is the operation of

Cutting a sheet of metal through part of its length and then bending the cut portion
Bending a sheet of metal along a curved axis
Cutting a sheet of metal in a straight line along the length
Removal of metal to the desired shape from the edge of a plate

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