... 3)good performance 4)roller shutter door ITEM NO.300KG HH-AD24-300 Electric Rolling Door MotorMain specifications and technical parameter1.Environment ... manufacturer of rolling door motors, fireproof door motors, AC&DC door motor, Garage Door and Entrance Gate Operators, garage door opener and other ... , Longwen District, Zhangzhou, Fujian, China. 300KG HH-AD24-300 Electric Rolling Door Motor