Sell Cr39 Photochromic Lens for 1.56 Middle Index

Product Name: Cr39 Photochromic Lens for 1.56 Middle IndexModel Number: WX05Place of Origin: ChinaFeatures: 1) Refraction index: 1.56 2) Abbe value: 43 3) Can be used equally well throughout the year in all climates 4) High original transmission, high rate of darkening in the sun 5) High rate of fading out of the sun 6) Grey and brown colors available ND=1.56, middle index Cr39 photochromic lens. 70/72mm: 1) SPH+0.00 to +8.00 2) SPH+0.00 to +8.00/2.00