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Students of a school in Sonbhadra have manufactured oxygen cylinder regulators. On Sunday, it also performed successfully in front of the enlightened people of the city. The cost of one unit of this has come to only 2500 rupees. Whereas, the price of the regulator found in the market is 3500 to 4500 rupees.
- Category
- Asia
- Tags
- Coronavirus, Covid 19, oxygen regulator
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