zzkd новое лабораторное вспомогательное оборудование вертикальный роторный испаритель вспомогательное оборудование вертикальный циркуляционн

brief introduction the vertical circulating water vacuum pump is the latest designed vacuum pump model with circulating water as working fluid, and it adopts jet technology to create negative pressure. it is not only a kind of vacuum suction device, but also supplies cooling water to the reaction device at the same time. it has the non-oil, free-pollution, anti-corrosion, low noise, easy to move and so on features.