What color line does the worker draw at the elevator entrance?

According to national standards and safety regulations, industrial elevators generally need to be marked with safety warning lines, the colors of which may be different. Internationally, industrial elevators are generally marked with yellow or yellow black lines in both industrial and commercial fields. Yellow is usually used to mark vertical planes and inclined planes, while yellow and black lines are usually used for horizontal planes. The purpose of this sign is to remind people to pay attention to safety and prevent accidents. However, due to different national, regional and legal requirements, the specific color labels may be different. Therefore, in order to ensure accuracy and compliance, please refer to relevant local regulations and standards.