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Amazon.com: Stainless Steel High Pressure Needle Valve 6000 Instrument Tube Through Board Type Female Thread Globe Valve 1Pcs (Size : 1/4inch, Color : NPT_ORDINARY TYPE) : Industrial & Scientific
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304 Stainless Steel Double Sleeve Needle Valve 6 mm 8 mm 10 mm Instrument Tube Hexagonal Card Sleeve Passage Valve 1 Piece (Size : 4 mm, Colour : 304) : Amazon.de: DIY & Tools
![Dimensions of the instrument, giving an idea of the size of the device. | Download Scientific Diagram Dimensions of the instrument, giving an idea of the size of the device. | Download Scientific Diagram](https://www.researchgate.net/publication/265063418/figure/fig3/AS:296016420065283@1447587222086/Dimensions-of-the-instrument-giving-an-idea-of-the-size-of-the-device.png)