Beijing Zhongkainan Technology Co., Ltd.
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Entrance guard checking-in system
Entrance Guard Checking-In System
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Contact
- Rm.1409, Bldg.9, Wangheyuan, Shuguang Garden, Sijiqing, Haidian, Beijing, 100081
- China
- 010-88450140
- www.zhongkn.com
- Zheng Congwu