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Excellent digital gas price sign factory: Although neon gas was originally used in neon signs, it is now only used to produce reds and oranges. Argon, or an argon-neon mixture, is used in most signs. To improve the intensity of the light, a small amount of mercury is added to the argon to produce an intense blue light. This light impinges a variety of light-emitting phosphorescent materials coated on the inside of the glass tube to produce various colors. Optical tints in various colors may also be used, or the glass may be left clear if a strong blue light is desired. Xenon, krypton, and helium gases are sometimes used for special color effects. See extra information on digital price sign. Choose BBM LED digital gas price signs to enhance…