Under the hard work of the technical department, Ningbo Jiangnan Instrument Factory has solved key technical problems, and the new product NVN-900 constant temperature and humidity weighing system has been successfully put into production. The new product has been tested and all indicators have met the relevant standards, and has been fully put into the market. The diversification of our company's products has greatly enhanced our market competitiveness. We would like to express our warm congratulations.