... , Application: customs, railway, oil-transportation, foreign trade testing department and the confidentiality purposes in finance, store, electrical, petroleum, air transportation ... .5, Colors: white, red, blue, yellow, green, black and any other colors, we can customize for you.6, Usage ... hole of the tag;7, Printing: logo, serial no., letters and so on;8, Package: polybag inside,carton outside, or can ...