The company specializes in the production of various specifications of quartz glass tube plugs, large diameter quartz tube and thick wall transparent quartz glass tube with SiO2 content ≥99.98%, Fe, Al, Ca, Mg, K, Na, Ti, Li, Ni, Cu, B, Cr total content ≤45ppm, the use temperature below 1100℃. The product has excellent thermal stability performance, electrical insulation performance, light transmission performance, acid resistance, widely used in high-tech fields of semiconductor technology, integrated circuit manufacturing, optical fiber communication, laser technology, aerospace technology and optical industry. Quartz tube plugs of different diameters can be processed according to customer requirements.