The function of the sign has two points:First, signboard has the function of Mark and warning, and it mainly expresses its function through vision. For example: for text communication, the mark has the functions of symbolism, direction, implication and so on.Text style can show character, background and meaning. Form and Mark together show the significance of symbol and constructivity.Second, sign is a kind of information to convey media, it has the function of advertising, warning.Product description: it is made of light-storing self-illumination materials, which has the functions of light-absorbing and light storage. It absorbs visible light such as sunlight and light in bright places for 20 minutes and can last for more than 12 hours.Light-absorbing. The process of luminescence is used repeatedly for unlimited times. No power supply, no maintenance, luminous safety factor up to 100%.Continuous Service life up to 15 years.There are two types of wall types: Frosted PVC and transparent PVC plus silver frame, with self-adhesive.Material: Frosted PVC with adhesive.Sign manufacturers are mainly located near the Zhou of Beijing, such as Changping, Daxing, Tongxian these areas are specializing in the production of various types of signs
