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The rock generally used for roofing, is
OpenVideRime asked 5 years ago • 
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The process of manufacturing steel by heating short lengths of wrought iron bars mixed with charcoal in fire clay crucibles and collecting the molten iron into moulds, is known as
OpenVideRime asked 5 years ago • 
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Sewer pipes are made of
OpenVideRime asked 5 years ago • 
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Kaolin is chemically classified as
OpenVideRime asked 5 years ago • 
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The variety of pig iron used for manufacture of wrought iron, is
OpenVideRime asked 5 years ago • 
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Wrought iron contains carbon upto
OpenVideRime asked 5 years ago • 
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Second class bricks
OpenVideRime asked 5 years ago • 
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The lime which contains high percentage of calcium oxide, is generally called
OpenVideRime asked 5 years ago • 
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Porcelain is used as:
OpenVideRime asked 5 years ago • 
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The property by virtue of which lime sets under water, is known as
OpenVideRime asked 5 years ago • 
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