Computer · Concrete Technology
निम्नलिखित में से कौन-सा जल-घटाव (water reducing) अद्मिश्रण (admixture) है?
- 1लिग्नोसल्फोनेट✓
- 2न्यूट्रलाइज्ड विंसोल रेजिन
- 3कैल्शियम क्लोराइड
- 4सल्फोनेटेड मेलामाइन
सही उत्तर देखें
लिग्नोसल्फोनेट
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