Lianyungang Changming Quartz Products Co., Ltd. is located in Donghai County, Jiangsu Province, is a professional production and sales of experimental quartz glass instruments enterprises. The company mainly researches, develops and sells high-quality optical quartz glass sheets, sapphire sheets, quartz tubes, quartz rods, quartz boats, quartz beakers and other experimental quartz glass instruments and utensils, focusing on quartz laser finishing (drilling, grooving, cutting). Products are widely used in semiconductor, electronic information, solar photovoltaic, infrared heating, aerospace, chemical, scientific research institutions, laboratories and other industries.