BEIJING RUNZETONG OPTICAL LTD, which was established in 1997 is a high tech company registered in ***** are more than 50 employees in RZT , most of them have more than 20 years experience in the field of solid state laser engineering, laser and non- linear crystals (growth and fabrication) and optical coating respectively. RZT also has a high level team for new technology and product development, product manufacturing, management, sales and marketing. RZT focus its products to the laser crystals such as Nd:YAG, Nd:YVO4; non-linear crystals such as KTP, BBO and KD*P; Infrared crystals such as CaF2, ZnSe, Si, Ge; RZT also manufacture various optical components for Nd.:YAG laser and CO2 laser. Including resonator mirror, optical flat, windows, prisms, scanner optics based on different materials include BK7 glass, fused silica, Ge, Si, ZnSe, ZnS, GaAs etc., RZT set up a factory melting color glass for filters in Hebei province to deliver different type of filter products such as KG3, KG5, UG11, UG5, RG850, BG 39, BG40 etc. to the ***** products of RZT are for exporting to USA and Europe. RZT will guarantee all delivered products in specifications.