Our department has developed and developed the production of air-classified testers, vacuum-sealed performance testers, certified through the iso 9001 quality management system, fully designed for software and hardware, with fully autonomous intellectual property rights, widely applied to a wide range of products requiring protective testing, meeting test requirements such as ip67 and ip68. Vacuum sealed performance testers are used primarily for sealing tests for packaging products such as food, medicine, medical, etc. Details of which are welcome on call。