platinum tube

https://www.attelements.com/platinummetal-and-alloys/platinum-tube-(pt-tube).html

Platinum and platinum alloys are used in a wide range of settings where chemical inertness or wear resistance are important, including medical devices, laboratory instruments, electrical contacts, spark plugs, and turbine engines. A platinum-iridium alloy was also used to produce the international prototype kilogram and meter in the late 19th century; of the two only the kilogram remains in official use. Finally, organometallic platinum complexes have been investigated for use in cancer treatment. Like other platinum group metals, platinum is most often obtained for commercial use as a byproduct from nickel and copper mining and processing, but can also be obtained from rare platinum-rich ores and alluvial deposits of native platinum.

ATT can provide Platinum (Pt) Tube with various dimensions, even the Platinum Capillary Tube.