The uses of Hydrones in the evaluation of water polution and small scale cleaning lakes, rivers, and canals. We want to inroduce Mantarraya Negr... Published on September 13, 2022 04:13 by Mario Arturo Ruiz EstradaThe uses of Hydrones in the evaluation of water polution and small scale cleaning lakes, rivers, and canals. We want to inroduce Mantarraya Negra Hydrones fyi: https://www.mantarrayanegrauav.com/ Media