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oxygen water pump

Hai Duong ‘king of invention’ Pham Van Hat wins prize of 10th Agricultural Technical Innovation Contest

Hai Duong ‘king of invention’ Pham Van Hat wins prize of 10th Agricultural Technical Innovation Contest

The oxygen water pump by Pham Van Hat in Tu Ky district, Hai Duong province has secured the encouragement prize of the 10th Agricultural Technical Innovation Contest.
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Governing body: Hai Duong Provincial Party Committee

Editor-in-chief: Nguyen Quy Trong

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Communications on May 10, 2022

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