Dodał:
Gall Anonim
46 wyświetleń
How to Make Vacuum Pump and Vacuum Chamber - Learn how to make vacuum pump and vacuum chamber using 50 ml syringe , 500 g Mason Jar and 3 one way bicycle tube valve (Schrader or Presta valves or ...
Dodał: Gall Anonim
Wyświetleń: 54
Dodał: Gall Anonim
Wyświetleń: 37
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