Semtong Technology Co., Ltd, a high-tech enterprise integrated with development, manufacture and marketing, was established in ShenZhen, China in 2000. For our business goal, development strategy and service concept, Semtong has been enjoying good reputation in China and abroad. Within several years, Semtong has become a leader in the field of Passage control system products in China. We aim at becoming one of the leading RFID card sys

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