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2XZ series rotary vane vacuum pump is double stage high speed oil sealed rotary vane vacuum pump (hereinafter referred it as "the pump" for short). Its pumping principle is same as that of 2X type ... XD series vacuum pump is a single-stage rotary vane oil-sealed vacuum pump, which is one of main low and medium vacuum equipments. It can be used separately and be as forepump of vacuum pump, ...
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