Borosilicate glass is produced using the electrical conductivity of glass at high temperature to melt it by internal heating, followed by advanced manufacturing processes. It is colorless and transparent, with a very low thermal expansion coefficient, high temperature resistance, and resistance to abrupt temperature differences of 200 degrees. Its transmission wavelength range is 300 nm to 2500 nm, transmittance is ≧90%, and thermal expansion coefficient is 3.3. It resists acids and alkalis and withstands temperatures around 400℃, or around 550℃ after special treatment. Borosilicate glass is among the best heat-resistant instrument glasses and is widely used for heat-resistant glassware, including corrosion-resistant chemical equipment and fittings and laboratory glassware. It is also excellent for lampworking instruments.
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Nantong Xiangyang Optical Components Co., Ltd. was founded in 1996, is a high-tech enterprise in Jiangsu Province, specializing in the production and processing of colored optical glass and colorless optical glass, as well as flat glass screen printing and tempering. Main products include cutoff glass, ultraviolet glass, gold (yellow) glass, orange glass, red glass, infrared transmitting visible absorbing glass, selective absorption glass, color temperature increasing glass, color temperature decreasing glass, ultraviolet transmitting visible glass, wavelength calibration glass, purple glass, heat insulating glass, green glass, cyan-blue glass, neutral gray glass, bandpass filter glass, optical filters, colorless optical glass, borosilicate glass, B270, K9 (Bk7), quartz glass, etc. Products are widely used in optical instruments, medical instruments, biochemical instruments, analytical instruments, electronics, aviation, military, scientific research institutions and universities, as well as glass screen printing and tempering supporting for elevators, washing machines, refrigerators, home appliances, instruments, various high-intelligence electronic switches, etc. Products are exported to the United States, Germany, Russia, India, South Korea, Taiwan, Hong Kong and other countries and regions. The company has passed ISO9001:2000 quality system certification.