Nantong Guo Guang Optical glass Industry Co.,LTD is an professional manufacturing company, which is engaged in producing and processing material of colored optical glass. Our company has converted from processing company to manufacturing company for producing material and processing optical glass. Thus, Our company is more competent on price and technology. Our company covers an area of more than 3600 meter square. We employ many experts with rich experience and skillful technology who have accumulated strong capacity of research and development of new products. Our company produces the material by the most advanced system of digital controlling modules. Now, we have already successfully researched a new type of optical glass named Heat-absorbing and Temperature Glass(SG4100), which is used on surgical shadowless lamps and the new product has win the reputation and honor from many domestic and overseas customers. Main products: SG4100(Heat-absorbing and Temperature Glass specially used in surgical shadowless lamps) ; ultraviolet glass, infrared glass; the glass of heat insulation and quartz glass; Neutral Grey Colored Glass;Cut-off Type Glass(Golden,Orange,Red) More than one-hundred types of colored optical glass and researching facility are available. Main applications include photographing apparatus, meter and instrument, optical devices, medical treatment apparatus, teaching apparatus, UV analyzers, financial equipment, airport lamps and military equipment,technological research institutes and public security departments. The products have been exported to Europe, the US, Southeast Asia, Japan, South Korea, Hong Kong, Macao and Taiwan and been highly recognized by users.