Sell Industrial ventilating fan

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Industrial ventilating fan
Square & unclosed type
Model No: DF-20, DF-25, DF-30, DF-35, DF-40, DF-50

-Size: 8",10",12",14",16",20"
-Color: black, gray, red etc as your requested;
-CAD Optimal design, Punched metallic outer cover;
-100% copper winding motor, ball bearling, with build-in thermal fuse;
-Quality punched steel sheet struction parts, easy to install;
-Large air flow delivery, low noise and stable running;