Donghai Kerui Quartz Products Co., LTD., located in Donghai County, Jiangsu Province, is a manufacturer and seller of experimental quartz glass instruments. The company's main research, development and sales of high-quality optical quartz glass sheet, sapphire sheet, quartz tube, quartz rod, quartz boat, quartz beaker and other experimental quartz glass instruments, utensils manufacturers, focusing on quartz laser finishing (punching, grooving, cutting). Products are widely used in semiconductor, electronic information, solar photovoltaic, infrared heating, aerospace, chemical industry, scientific research and development colleges, laboratories and other industries.