How to choose liquid ring vacuum pump unit
Posted on Fri, 18 May 2018 05:59:40 +0000
With the development of the application of vacuum pump, vacuum pump has been developed to a variety of species, its pumping speed from zero to a few liters per second, hundreds of thousands, millions per second; extreme pressure (vacuum limit) from low vacuum to 10-12pa ultra-high vacuum range. &...
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