Fasteners : all the fastener enjoy the application of high strength industrial bolt of 8.8 grade and the practical stress it could endure is 10 times than normal.
Steel wire traction : every steel wire has the strength of stress at 1000kg with the joint being set up double protection.
Protective structure for fan main body : safety ring, once accidents occur, the safety ring would protect any spare part from falling down.
The l – type safety structure to reconnect all the flabellum and the bottom head as an integrated structure.
Once accident occur the frequency controlling system would automatically alarm and stop operation.
