Lianyungang Tongzhou Quartz Products Co., Ltd. is located in Donghai County, Jiangsu Province, is a professional production and sales of quartz products enterprises. The company mainly 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 equipment manufacturers, focusing on quartz laser finishing (drilling, grooving, cutting). Products are widely used in semiconductor, electronic information, solar photovoltaic, infrared heating, aerospace, chemical, scientific research and development institutions, laboratories and other industries.