... capacity and durable than other motors6) make dimension of Automatic rolling door operator bracket system according to your request, ... request, now we have functions: infrared sensor, ups, rebound automatic when meet obstacle, alarm function, lighting and so on…8 ... FOR ONE 20GP CONTAINER.AC&DC MOTOR INCLUDEMOTOR,CONTROL SYSTEM,BACKUP BATTERY, BRACKET SYSTEMAC&DC MOTOR OPTIONALPUSH BUTTON,LOCK BOX, ...