Glass-to-metal seal little lower than that of the soda-lime glass. Classically high lead containing glasses are used, but it is also possible to substitute these by multi-component glasses e.g. based on the system ---------. Glass-to-metal seal Glass-to-metal seals are a very important element of the construction of vacuum tubes, electric discharge tubes, incandescent light bulbs, glass encapsulated semiconductor diodes, reed switches, pressure tight glass windows in metal cases, and metal or ceramic packages of electronic components. Properly done, such a seal is hermetic (vacuum tight, good electrical insulation, special optical properties e.g. UV lamps). To achieve such a seal, two properties must
What Was Lost 2004. Kurt is a security guard at Green Oaks. He has a sleeping disorder. Lisa is the deputy manager of a music store. She is unhappy because of the strange behaviour of her colleagues and customers and because of her relationship with her partner. She becomes friends with Kurt. A girl holding a soft toy is seen in a CCTV security monitor. Kurt and Lisa follow the girl through Green Oaks and investigate how she is connected to Green Oaks' unsettling history. It is revealed that both Kurt and Lisa have connections to the case of the missing girl. "What