| Japan Security Show Booth... | 12/20/2011 |
| ISCW Booth Number 33036, ... | 12/6/2011 |
| Qiaohua's Booth No. 5.1C5... | 9/13/2011 |
| 2011 Autumn Hong Kong Ele... | 7/13/2011 |
| Qiaohua Booth No.142-144 ... | 5/9/2011 |
| Qiaohua Booth No 5/H20C ... | 5/9/2011 |
| Qiaohua Booth No 5.1C56-5... | 3/31/2011 |
| Qiaohua Booth No.3CON-B10... | 3/31/2011 |
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