Metal patterns are used for :
Small castings
Large castings
Precise and intricate castings
Large scale production of castings
Large scale production of castings
Metal patterns are used for large
scale production of castings. Metals like aluminium, brass, cast iron are
widely used. The dimensional accuracy is high but the limitation is that a
wooden pattern has to be first made to cast the metal pattern, thus the process
is expensive.
Hence, the correct option is (D).
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