About this product
- Material:Glass
- Style:Modern
- Country Of Origin:Mainland China
Product description
Material:K9 Crystal Glass
Please allowed 0.1-1cm differences due to manual measurement, thanks.
K9 is a Chinese Optical Borosilicate Crown Glass. It has low inclusions and bubbles. It is used for lenses and prisms for lasers and optics. It has good physical properties and can be polished like leaded glass. It also weighs approximately 15% less than full (24%) leaded glass (crystal). A US equivalent is BK7.