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CORE
*A core is a body made of sand which is used to make a cavity (or) a hole in casting.
*The shape of the core is similar to the required cavity in the casting to be made. It is also used to make recesses, projections, undercuts and internal cavities.
*A core print is the projection on a pattern. Core print forms a seat in the mould. The core is supported in the seat formed by the core print.
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