Ningbo Saitel Teaching Instrument Co., Ltd. (formerly Yuyao Zhangting Teaching Equipment Factory) is a member of China Teaching Instrument and Equipment Industry Association, specializing in the production of middle school science and elementary school mathematics science education equipment. Over the past 20 years, the company has developed into a backbone enterprise of teaching equipment with first-class quality, first-class management, first-class image and first-class service. The company's production base covers an area of 20,000 square meters. The products are not only sold well all over the country, but also exported to Europe. The United States, Southeast Asia and other places. The company passed ISO9001: 2000 quality management system certification in 2004.