Investment casting uses... A as pattern material and is

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Investment casting uses... A as pattern material and is preferred for small parts with .... B ____designs. A. wax/resin coated sand B. simple/intricate

1. A. wax B. intricate
2. B. wax A. intricate
3. A. wax B.
4. B. wax A.

Correct Option: A

A. wax B. intricate