Traditional Culture Encyclopedia - Hotel accommodation - How many lines did you draw on the hotel room number?

How many lines did you draw on the hotel room number?

No thread is needed. According to relevant information, the hotel room number is nailed to the wall with special metal nails, and there is no wire control, so the customer service room number is the same model, and the four corners can be fixed with four nails, but the hotel room number does not need wire rope control.