Why One End of the Nail is made Pointed? कील का एक सिरा नुकीला क्यों बनाया जाता है?

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Here you can watch the video online Why One End of the Nail is made Pointed? कील का एक सिरा नुकीला क्यों बनाया जाता है? which uploaded Anju's Science size ~17.05 MB and duration 4 min и 58 sec.
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