Physics · Mechanical Properties of Solids
रॉकवेल कठोरता परीक्षण (Rockwell test for hardness) में रॉकवेल C जैसे उच्च कठोरता पैमानों के लिए इंडेंटर के रूप में आमतौर पर किसका उपयोग किया जाता है?
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