... 100% copper s 2) Full cooling temperature system, moto with long service life 3)Large air volume , low ... temperature ris FS8 Series Stand Powerful Fan(Expert Type)(20",24",26",30")1) ... 50500MM22050130W14001707316kgsFS8-60600MM22050150W14001857619kgsFS8-65650MM22050230W14002058020kgsFS8-50750MM22050280W14002908624.5kgs FS8 Series Stand Powerful Fan(Expert Type)(20",24",26",30")