beam plates for sale, brand-new and used.

2015 optical glass lenses plano-convex lenses product descrition:

The current item is strike red borosilicate glass rods with coefficient of thermal expansion of 3.3 x 10^-6 /°C. It is sold as almost clear or slightly yellowish glass. But its red color is shown after thermal treatment.

The current item is mixed white, green, amber, yellow and light blue borosilicate glass rods with coefficient of thermal expansion of 3.3 x 10^-6 /°C. Dimension: ? 7 mm x 24".