Specifications Solid glass retro reflectors. Linear Dimensions : ? 0.15 mm Deviation : 180? ? 2 arc sec Surface flatness over central 90% Edge dimension - l /10 Material - As per customer's requirement Edges beveled approx. 0.25 mm Roof angles beveled approx. 0.1 mm Edges fine ground Surface Quality: Mil-0-13830/80-50 |