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Pressing Zr-Al(ST101) alloy powder in metal ring/plate/strip or into powder ring type. They are especially suitable for vacuun device where evaporable getters are prohibited and they can be used together with evaporable getters to enhance gettering efffects. These getters not only can be made into strip shape used in electrical lighting sources and vacuun device, but also can be made into various punps for equipnent needing large vacuun space. There series are used widely in high intensity discharging lanp, high-pressure switch tube, gas purifying tube, stainless steel vacuum bottles and so on. The series can be activated by means of high-frequency induction, electrical heating, radiation hwating or laser heating.
