Disposable blood pressure transducer

*Disposable blood pressure transducer ** 

6 -liter oxygen maker

6 -liter oxygen maker

10 -liter Oxygen Oxygen Maker

** ambient air **] (https://en.wikipedia.org/wiki/%D9%87%D9%88%D8%A7) ** It consists of 78%nitrogen, 21%oxygen and about one percent of other gases, performance **

6 -liter oxygen maker

6 -liter oxygen maker

Electric pen

## Electro Pen of Akzaz (Cottie Pen)