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| calendar>>March 12. 2015 Juche 104 |
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Ultra-precision Grinding Wheel Developed
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| Pyongyang, March 12 (KCNA) -- The Silicate Engineering Institute under the State Academy of Sciences in the DPRK has recently developed ultra-precision grinding wheel. It can grind metal products at a high rate, ensuring high surface finish to them. Its advantage and efficiency have already been proved in the process of its application. |
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Copyright (C) KOREA NEWS SERVICE(KNS) All Rights Reserved.
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