#Biogas
A 200 liter barrel is just for experience and nothing more. The gas collected per day is enough to heat the kettle
Негізгі бет Ғылым және технология Biogas from 200 liter drums lessons from mistakes subtitles
#Biogas
A 200 liter barrel is just for experience and nothing more. The gas collected per day is enough to heat the kettle
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