... Casting. It designed by the motor expert. The alternator has the merits: light weight, easy to start ... supply Vertical Axis Permanent magnetic generator or Vertical axis Alternator 50w, 100w,150w,200w,300w,500w, 600w,800w ... ,1000w,1.5kw,2kw, 3kw , 5kw, 10kw,15kw,20kw, 30kw, 50kw , 80kw, 100kw .Model :EL-FFL-20KRated ... star connectweight ( kg )660 Permanent magnetic generator 20KW Vertical axis