ZCQ is a manufacturer and supplier of optical fused quartz products. Through our continued efforts and more than 10 years of experience, we are able to offer a wide line of fused quartz materials and products, such as Sio2 targets, quartz ware, optical prisms, quartz windows, optical glass windows, and others. Due to their high quality and reliability, our fused quartz products are widely used by customers in America, the UK, Australia, Korea, Japan, and more. We are located in Beijing, China. This location gives us access to convenient transportation. For more information, please feel free to contact us. Thanks!