Chemistry · Important alloys & their uses
रोल्ड गोल्ड का मुख्य औद्योगिक अनुप्रयोग क्या है?
- 1हवाई जहाज के पुर्जे बनाना
- 2सस्ते या कृत्रिम आभूषण बनाना✓
- 3शल्य चिकित्सा उपकरण बनाना
- 4रेलवे ट्रैक का निर्माण
सही उत्तर देखें
सस्ते या कृत्रिम आभूषण बनाना
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