Computer · Building Materials
सीलन रोधन (damp proofing) के लिए निम्नलिखित में से कौन सी सामग्री सबसे अधिक उपयोग की जाती है?
- 1धातु की चादरें (Metal sheets)
- 2मैस्टिक डामर (Mastic asphalt)
- 3बिटुमिनस फेल्ट्स (Bituminous felts)
- 4गर्म बिटुमेन (Hot bitumen)✓
सही उत्तर देखें
गर्म बिटुमेन (Hot bitumen)
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