1. Puji Technology: As a well-known domestic manufacturer of seal detectors, Puji Technology provides various types of seal detectors such as hydraulic, pneumatic, and ultrasonic, and provides one-stop pre-sales and after-sales services. and technical support. 2. American Spirol Company: Spirol is a world-renowned supplier of sealed detectors. It provides two different types of sealed detectors, fully automatic and semi-automatic, which can be widely used in automobiles, medical, electronics, aerospace and other industries. 3. HELIOS, Germany: HELIOS: HELIOS is a world-renowned manufacturer of measuring equipment. Its leak detector can be widely used in hard materials, semiconductors, and liquid crystal displays, and has the advantages of high precision and high performance. 4. Inficon Company of the United States: Inficon Company is one of the world's leading manufacturers of sealed detectors. Its single-chamber and dual-chamber sealed detectors can be widely used in aviation, communications, semiconductor and other fields, with high precision, high productivity and high sensitivity.