Category: Shopping advice

Question:
I want to know, Yiwu commodities produced what is bar code number of the top six, is not a place at the beginning of six-digit commodity are the same?

Answer:
product bar codes are arranged by a set of rules, size and color of certain provisions of “Article”, “empty” and the corresponding figures for the characters “code” form, saying that the goods identification information. “Article” and “empty” by the different shades, but also meet certain requirements of two kinds of optical contrast of colors. “Article” is dark, “empty” as the light-colored. This “section” and “empty” and the corresponding characters in “code” represents the same information, the former for the scanner reading knowledge, which is available for reading knowledge directly or through the keyboard to enter data using a computer. Store purchase, it will bar-code number of commodities with the commodity prices, business names and other information entered into the database. In the purchase of goods, just enter the bar code information, the computer would immediately find the commodities. There are two categories of goods
barcode: EAN …