The drum body adopts the double-logarithmic variable helical blades and the drum body and blades are made of special fine grain wear-resistant steel plates for B520JJ mixing drum to remarkably prolong the service life of this product.
The superstructure is completely made of manganese steel to remarkably improve the bending and fatigue resistance of superstructure, effectively guarantee the driving safety, prolong the service life, and reduce the user`s maintenance cost.
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