Our company Factory CCTV some time ago did not know what is the reason for a little problem, but we had a professional examination for a long time do not know specifically what the reason, but later people Factory CCTV inside the company staff to our company to help us to deal with the problem, have to that professional is professional, for us the complex difficult problem especially to people’s eyes of professionals has become a small problem, other staff did not use the long time will help us to repair the Factory CCTV well, but also does not charge any fees. And the service attitude is great.