Tungsten-rhenium Wire Thermocouple Wire. Wre5-wre26, Wre3-wre25, Wire Diameter 0.5mm, Temperature Range 2300-2800 C. - Instrument Parts & Accessories - AliExpress
Tungsten Rhenium (WRe) Alloy Wire
Rare World Metals Mint Blogosphere – Tagged "iridium ring" – RWMM