The Lock and Unlock Notice Film is a small, adhesive film label placed on the operator cabin door of the mini hydraulic excavator. This film features clear and contrasting symbols or text indicating whether the door is locked (e.g., padlock symbol) or unlocked (e.g., open door symbol). Its position is usually close to the door handle or latch for easy visibility.Attributes:• Provided with a black background and white letters and an inner border for better visibility• Provided with a safety yellow background for greater visibilityApplications: The Lock and Unlock Notice Film provides a visual indication of the operator cabin door of the mini hydraulic excavator, informing the operator of the door's locking mechanism status (locked or unlocked).