The fan blade is stainless steel , big air volume, without distortion, no broken, attractive and durable.( adopting aluminum fan blade in the past, which had some problems caused by long time working of metal in the factory cooling, for example broken and air volume decreasing).
Adopts automatic belt tensioner which can adjust up and tight so that the belt can’t pine and drop .
The strap wheel adopts more stiffening rib and processed by sandblasting, become attractive, eliminate
the internal stress and increase own emphasis efficiently; France imported axletree(bearings), high intensity, low noise, long service life.