谈谈防伪技术刘政清防伪技术的开发及应用，已经经历了漫长的历史。在中国古代，国君把虎符做为调动军队的信物，该信物一部分在国君手中，另一部分由军队的统帅保存，当发布调动军队的命令时，军队的统帅必须先核对使臣所携信物无误后，才执行使臣传递的命令。在国外，人... Talking about the development of anti-counterfeiting technology Liu Zhengqing’s anti-counterfeiting technology and its application, it has already gone through a long history. In ancient China, the monarch used the tiger charm as a token of mobilization of the army. The token was partly in the hands of the monarch, and the other part was held by the commander of the army. When the command to mobilize the army was issued, the commander of the army must first verify that the messenger carried the letter. Before the execution of the order passed by the envoy. In foreign countries, people...