Dafan Photoelectric is a premier provider of high-precision photoelectric products and comprehensive solutions, integrating independent R&D, manufacturing, sales and one-stop service. We specialize in optical code discs, laser plotting films, 3D stereoscopic films, calibration films and glass linear scales, with advanced R&D base, Class 1000 clean workshops and world-class production equipment. Our ultra-high precision (25,400–50,800dpi), extra-large format (1680*3500mm) optoelectronic p