General Studies · Welding and Joining Processes
मानक सॉफ्ट सोल्डर (यूटेक्टिक सोल्डर) का विशिष्ट संघटन (composition) क्या होता है?
- 1सीसा (Lead) 70% और टिन 30%
- 2सीसा (Lead) 37% और टिन 63%✓
- 3सीसा (Lead) 50% और टिन 50%
- 4सीसा (Lead) 58% और टिन 42%
सही उत्तर देखें
सीसा (Lead) 37% और टिन 63%
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