Connection of the vacuum duct of the single crystal furnace and the furnace bellows connected to reduce the transmission of vibration, position error and compensate for pipe connection. 
 The bottom is fixed in the plane of the rack, the center hole of the crucible axis alignment benchmark, the bottom hole crucible drive connected with bellows seal. 
 Vacuum bellows for vacuum equipment and vacuum hose, the connection between the vacuum hose. It played the role of shock absorption, disinfection and compensation. Because of the unique features of the vacuum bellows, is widely used in the field of mechanical engineering, vacuum equipment, chemical engineering, vacuum sealed, soft connection, pressure sensor stiffness compensation, bio-pharmaceuticals, electronic engineering industry. 
 Ning Tai Hefei bellows full set of South Korean technology to produce vacuum bellows by automatic TIG tungsten pole argon arc welded precision welding, high flexibility, compact size, and each hose after ultrasonic cleaning and helium mass spectrometer leak The test applies to the quality of parts require very stringent vacuum and ultra-vacuum hose system piping, single crystal furnace polycrystalline furnace semiconductors, superconductors, nuclear energy, new materials, space development and other areas have a wide range of applications. 
 The company is a professional design, production and sales of various welded metal bellows and hydraulic molding pipe company, the Division I professional design team, the introduction of advanced welding technology in South Korea in order to ensure the quality of the product, the Company may undertake a variety of industries corrugated metal pipe products used in the design, production, maintenance and other services can also be customized products according to customer requirements, design and production of non-standard flange, welcome new and old customers to inquire, we will be happy to serve you.