The popular wave of printing in the early spring of 2015 is not only in the printing patterns, the fabric itself, but also in boldly mixing them together! Bringing prints of different brands, colors, patterns, and fabrics into one, giving a visually striking and publicized effect.
Security camera is a collection device which converts optical image from visible light to near infrared spectrum on the target surface of image sensor into video signal.Must pay attention to the cctv lens when choosing the security camera.The smaller F value is, the better performance will be.In order to get a larger aperture, sometimes the length of the lens is increased to get a smaller F value, thus improving the performance of the lens.
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