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18mm Screw Closures

The thread of the magnetic metal cap fits closely with the Headspace Vial, and the thickness of Septa can also ensure that it is slightly squeezed to achieve a sealing effect when the cap is closed by Vial. The Cap with a center hole can facilitate sample injection without leaking reagents. The function of magnetism is to better fit the autosampler.

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The 18mm magnetic metal cap is compatible with Headspace Vial. The headspace vial is often used for gas chromatography analysis, so a large-capacity vial is needed for experimental analysis. The upper part of the vial needs to contain the gas generated by the liquid after heating, so it is necessary for closures Tightly sealed, and the 18mm screw closure produced by Aijiren can meet this condition.
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