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Guiyang Joint-Win Optical Instruments Co., Ltd as a professional manufacturer and exporter of optical instruments, we are devoted to developing, producing, selling of zoom stereo microscope, biological microscope, metallurgical microscope, polarizing microscope, fluorescence microscope etc. We have advanced equipment, first-class technology, dedicated staff and strict quality control system. Our products exported to European and American markets, and also the Middle East market because of the high quality and low price, more than 90% microscope are exported to the countries around the world. Our philosophy is "provide the best quality by the lowest price to achieve win-win ". We will continue to improve our products with lower prices, thus enhance costomers' profits. we will try our best to meet customers' needs. If you are interested in our products, please contact us. we always welcome your letter and calls, thanks!