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NEWTRY Electric Centrifuge Machine Desktop Lab Benchtop Centrifuges with Timer and Speed Control 4000rpm Capacity 20ml×6 800D 110V US Plug, 60HZ: Amazon.com: Industrial & Scientific
Desktop Electric Lab Laboratory Centrifuge Machine Lab Medical Practice w/Timer and Speed Control - Low Speed,4000 RPM, Capacity 20 ML x 6-110v by Lucky Seven: Amazon.com: Industrial & Scientific