Vacuum viewport manufacturers     viewport shutter manufacturers chambers electrical feedthroughs mechanical feedthroughs fittings, flanges vacuum components     Europe America ASIA PACIFIC     CN IN KR Pfeiffer Vacuum (Shanghai) Co., Ltd - www.pfeiffer-vacuum.com - Unit B, 5th Floor, Building 3, YouYou Park, 428 Yanggao South Road, Shanghai, 200127, China email: info@pfeiffer-vacuum.de, Tel. +86 (0)21-33933940 Pfeiffer Vacuum is a vacuum technology world leader for more than 120 years: an important milestone was the invention of the turbopump in our company more than 50 years ago. Our comprehensive range of solutions, products and services includes vacuum pumps, measurement and analysis equipment, up to complex vacuum systems. products: Viewports ISO-KF, ISO-K, ISO-F, CF Viewports,   CF Shutter ISO-KF, ISO-K, CF Glass Retainers, Glasses for Retainers Sightglasses are mainly used to visually observe processes. They can, however, also be used for the specific transfer of electromagnetic waves. For this, the transmission and the optical quality of the glasses should be considered. We provide suitable types of glass combined with various types of vacuum flange to suit your specific application.     www.vacuum-guide.com     Keywords