Beijing Chengzhong Shiji Science And Technology Co., Ltd.
[ Trader ]Main business are EXQUISITE TYPE CARD READER, SINGLE-PORT MEMORY BAR CARD READER, DOUBLE-PORT CARD READER, THREE-PORT CARD READER, EXQUISITE MEMORY BAR CARD READER, MOBILE PHONE MODEM, USB NETWORK CARD, WIDEBAND SERVER, WIRELESS NETWORK CARD, KEY MEMORY BAR CARD READER, KE