... believe we can make suitable products to you. 1) manufacture AC, DC, AC and DC Rolling door motor , design and make motors ... FUNCTIONAC MOTOR LOAD CAPACITY450-500 SETS FOR ONE 20GP CONTAINER.AC&DC MOTOR INCLUDEMOTOR,CONTROL SYSTEM,BACKUP BATTERY, BRACKET SYSTEMAC&DC ... MOTOR OPTIONALPUSH BUTTON,LOCK BOX, INFRARED SENSOR, ALARM SYSTEM.AC&DC MOTOR LOAD CAPACITY420-450 SETS FOR ONE 20GP CONTAINER ...