Answers for Guessing the Device from Pictures 20171110 have been released
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This post was last edited by wawa*n*ntaozi on 2017-11-13 08:15 – Guess the device from the picture! ! What is this device? Vane vacuum pump: 3 wealth rewards for active participants, 8 wealth rewards for those who answer correctly! ! The answers will be released in two days; those who participate after that time will no longer be eligible for scoring or rewards. We hope all participants will join actively! ! ! Chemical Equipment and Machinery
Rotary vane vacuum pumps look really sophisticated; they appear to be in a miniature form, but I wonder if larger versions exist.
German Leybold two-stage oil-sealed rotary vane vacuum pump