1.Fasteners:All fasteners are made of high-strength industrial bolts with actual stress of more than 10 times.
2.Steel wire traction:the stress intensity of each steel cable can reach 1000KG,and double protection is at each connection point
3.Fan main body protection structure:fan safety ring,accidental occurrence,safety ring to protect,prevent any parts from sliding.
4.Fan blade i security structure,which links all the fan blades ang chassis togetier again,becomes the whole structure.
5.Automatic alarm stop operation of accidental frequency conversion