Monitoring panorama fish-eye lens series
The engineers and technicians of Qinhuangdao Audio-visual Machinery Research Institute, put all their heart and soul on the researches and then develop the....
See more »Qinhuangdao Audio-visual Machinery Research Instituteis subordinate to China Machinery and Equipment Company. As a High-tech enterprise, it has put all its effors on research and design, manufacture, ....