dental reflecting telescope concave mirror

Optical mirror reflector price front surface dental orthodontic reflector telescope mirror Specification Product Name reflective mirror Material Optical glass diameter 203mm focal length 750mm Thickness Tolerance ±0.05mm shape Spherical Surface Quality 40/20 Coating aluminum Edge thickness 18mm Net weight 1.47kg Materials BK7 or others optical glass. quartz. sapphire . Ge. Si- ZnSe· CaF2 etc. Diameter 1.5~300mm Radius R 0.8mm-∞ Focal length -30000mm~+ 30000mm Center thickness