... advertising equipment such as metro signs.light box,showcase,sign panel,display rack,booth and so on. We are ... ,metro light box , led metro light boxes,metro signs,and light box project for Shenzhen City. Good quality,lower ... ,such as metro station,mall,business street,airport and so on.As light box or sign is ... :door-open type,easy to change the light and close the door due to the inner magnetic part ...