This vacuum tank realizes stable negative pressure storage, effectively storing and buffering various industrial gases. Fine seamless welding and polished inner surface avoid contamination and leakage. It can withstand complex working environments with high temperature and humidity, widely applied in machinery, chemical, medical and electronic industries. All products pass strict pressure resistance and vacuum detection. Featuring simple installation, easy maintenance and long service life, it is a safe, efficient and cost-effective vacuum pressure storage equipment for modern industrial production.