... we can make suitable products to you. 1) manufacture AC, DC, AC and DC Rolling Door Opener, design and make motors according to your ... rebound automatic when meet obstacle, alarm function, lighting and so on…8) our Rolling Door Opener pass CE and we start ... 500 SETS FOR ONE 20GP CONTAINER.AC&DC MOTOR INCLUDEMOTOR,CONTROL SYSTEM,BACKUP BATTERY, BRACKET SYSTEMAC&DC MOTOR OPTIONALPUSH BUTTON,LOCK BOX, ...