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抽氣圓盤：直徑200mm
底座面盤：300×300mm 配件：真空測定計1個， 金屬製活栓一組。
Constructed of steel and accommodates bell jars up to 200mm in diameter.
Plate is equipped with a barbed hose connection, vacuum gauge, vacuum release valve, and rubber gasket to provide a tight seal.
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