Kunming Kelongda optical instrument Co., Ltd. is an optical technology enterprise with import and export qualification. Specializing in the development, production, and sales of optical products. The main products are: telescope series; target series; magnification telescope series, astronomical telescope series, laser ranging telescope series and night vision equipment (including low light night vision, digital night vision and infrared night vision) series, and other specifications Complete, stable and reliable quality. The company has modern op...