General Studies · Welding Technology
कास्ट आयरन वेल्डिंग कार्य के लिए पूर्व-तापन (प्रीहीटिंग) के लिए आमतौर पर किस तापमान की सिफारिश की जाती है?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1400°C
- 2300°C✓
- 3200°C
- 4100°C
सही उत्तर देखें
300°C
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