Computer · Concrete Technology
साधारण पोर्टलैंड सीमेंट (OPC) का उपयोग करके कंक्रीट के मिश्रण, परिवहन, डालने (placing) और कूटने (compacting) में लगा कुल समय आमतौर पर किससे अधिक नहीं होना चाहिए?
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