General Studies · Machining Processes
ढलवां लोहा (cast iron) की आरी से कटाई (sawing) या मशीनिंग करते समय आदर्श रूप से किस शीतलक (coolant) का उपयोग किया जाना चाहिए?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1घुलनशील तेल (Soluble oil)
- 2मिट्टी का तेल (Kerosene)
- 3शुष्क हवा (Dry air)✓
- 4पानी
सही उत्तर देखें
शुष्क हवा (Dry air)
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