Iriri Ọdun 20 Ni aaye yii
Orukọ Ọja: Isọtọ ara ẹni Aifọwọyi Rotari Airlock Valve
Lilo: Rere ati Negetifu titẹ pneumatic eto gbigbe
Ohun elo: Le ṣe adani (irin alagbara tabi irin ductile)