MCQOPTIONS
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| 1. |
TYPICAL_PARTS_SUCH_AS_IMPELLERS,_CUTTERS_FOR_MACHINING_OPERATIONS_ARE_MADE_BY?$ |
| A. | plaster-molding process |
| B. | ceramic-mold casting process |
| C. | shell -molding |
| D. | none of the mentioned |
| Answer» C. shell -molding | |