About Yongtek Yongtek is a professional optical plate manufacturer. We invest development resource in diffuser plate and light guide plate for years. Our key technology is experienced extrusion manufacture process, formulation, and optical design which make our product quality outstanding and stable.We hope Yongtek can be the world famous brand of optical plate in LED lighting industry. Main product –Diffuser plate ,Light guide plate, white reflector, diffuser tub, diffuser film, BEF(Brightness enhancement film)   Diffuser plate Product characteristi...