Barcode card with a set of rules of arrangement, barcode empty records and their corresponding characters of information, common bar code symbol is printed by the black bars and white space made when light shines on the bar code symbol, black bars and white empty produce a strong contrast to the use of different light reflectivity to empty reading information. Barcode card into a two-dimensional code and two-dimensional code. One-dimensional code commonly used magnetic stripe card production, such as the bar code on the packaging of daily commodities is one-dimensional code. It's a small amount of information stored can only store a code, when you use this code data retrieval via a computer network. Two-dimensional code is developed in recent years, it can store more information, including text, images, fingerprints, signatures within a limited space, and from the computer to use. Barcode card making simple, common barcode printing or copying certain requirements to lower costs, but it is a two-dimensional code reading device for reading particular device) is more expensive. With magnetic cards and IC card is different is Beijing magnetic stripe cards, barcode card information can not be rewritten magnetic stripe cards, magnetic stripe card processing in addition, poor safety performance standards are not uniform, which limits its application. Such cards are widely used in shopping malls membership cards, membership cards supermarkets, stores membership cards, membership cards, etc. hotel, more extensive. vip card production convex code can play up to how many? PVC cards convex code can play up to 19 (including spaces), there is no more than 19 machines appeared, the best control in less than 16, the code is too long will cause the card protruding a little deformed, big endian can be fixed to a convex code unchanged, ending in a small convex code can be fixed three unchanged, the law must be convex code, level code cards, marking cards, barcode cards, magnetic stripe card data without restriction. First-class production process, [Beijing] magnetic stripe cards, magnetic stripe cards offered by Orient million cards. Search for "membership cards, magnetic stripe cards, Gold, Silver, transparent card, IC card, pvc card, VIP" fly suppliers, network operators choose to have the whole alliance certification: Beijing Oriental one hundred million Smart Card Technology Co., Ltd. (www.dfykzk.com), trustworthiness and reliability, "Business League call" on the page now click on live chat with us now!