School0196
Categories: School Education Equipments
Tags: focal length 250mm , dia 50mm , Glass Lenses - Double ConcaveGlass Lenses - Double Concave, dia 50mm, focal length 250mm Double Convex Spherical lenses, optically worked glass, with ground edges, highly polished.Spherical, optically
Glass Lenses - Double Concave, dia 50mm, focal length 250mm ALTEC Laboratory Equipments and ALTEC Laboratory Instruments Tenders.