Before entering the building each time. Visitors must remove shoes before wearing House shoes, or stored in a factory, and change the worn shoes of the factory.
Before building production time Visitors must remove their shoes wear out of the house. Keep in closet The factory provided and replace worn shoe factory.
Before entering the building production all the time. Visitors have to take off your shoes that wear from home, stored in the shoes. Or factory provided and changed to wear shoes of the factory.