Chemistry, asked by faiz8826, 11 months ago

In which order do we give allowance while casting a metal?

Answers

Answered by manojsah7631
2

Patterns used in sand casting may be made of wood, metal, plastics or other materials. Patterns are made to exacting standards of construction, so that they can last for a reasonable length of time, according to the quality grade of the pattern being built, and so that they will repeatably provide a dimensionally acceptable casting.

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