Fermentation of organic fertilizer spiral mixing machine Henan Viet organic fertilizer equipment manufacturing company developed the fermentation of organic fertilizer spiral mixing machine, in this case, install the device screw lever autobiography, while bypassing the central axis means stirring fermentation, The purpose of this operation in order to prevent the occurrence of uneven material, arranged in the form of a screw-shaped in order to maintain a uniform distribution of air, the material in the fermentation device through an automatic movement from top to bottom fermentation. . 

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