... L/C ITEM NO.300KG HH-AD24-300 24V Automatic Door Operators DC MotorMain specifications and technical parameter1.Environment air temperature changed ... professional manufacturer of rolling door motors, fireproof door motors, AC&DC door motor, Garage Door and Entrance Gate Operators, garage door opener and other related ... , Zhangzhou, Fujian, China. 300KG HH-AD24-300 24V Automatic Door Operators DC Motor