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2. Visual markers of marital status - Wikipedia

   en.wikipedia.org/wiki/Visual_markers_of_marital...

   In modern times, the material of wedding rings is not strictly prescribed; they may be forged of gold, rose gold, white gold, argentium silver, palladium, platinum, titanium, or tungsten carbide. Manual laborers sometimes wear rings of inexpensive or more durable materials like tungsten while working or bear an ink tattoo to avoid personal ...

3. Tungsten carbide - Wikipedia

   en.wikipedia.org/wiki/Tungsten_carbide

   Tungsten carbide (chemical formula: WC) is a chemical compound (specifically, a carbide) containing equal parts of tungsten and carbon atoms. In its most basic form, tungsten carbide is a fine gray powder, but it can be pressed and formed into shapes through sintering [7] for use in industrial machinery,engineering facility,mold industry,cutting tools, chisels, abrasives, armor-piercing ...

4. Tungsten - Wikipedia

   en.wikipedia.org/wiki/Tungsten

   The jewelry industry makes rings of sintered tungsten carbide, tungsten carbide/metal composites, and also metallic tungsten. [76] WC/metal composite rings use nickel as the metal matrix in place of cobalt because it takes a higher luster when polished. Sometimes manufacturers or retailers refer to tungsten carbide as a metal, but it is a ...

5. Plansee Group - Wikipedia

   en.wikipedia.org/wiki/Plansee_Group

   Tungsten ore concentrates are processed into ammonium paratungstate (APT) and then into tungsten metal powder, tungsten carbide and ready-to-press powders. GTP has a subsidiary, Bruntál (Czech Republic), and was integrated into the Plansee Group on 1 August 2008 following approval by the antitrust authority, becoming the fourth division at ...

6. Cemented carbide - Wikipedia

   en.wikipedia.org/wiki/Cemented_carbide

   The first cemented carbide developed was tungsten carbide (introduced in 1927) which uses tungsten carbide particles held together by a cobalt metal binder. Since then, other cemented carbides have been developed, such as titanium carbide, which is better suited for cutting steel, and tantalum carbide, which is tougher than tungsten carbide. [1]

7. Kate Middleton Wore Her Engagement Ring in Public for the ...

   www.aol.com/kate-middleton-wore-her-engagement...

   In fact, until this past weekend, Kate hadn't worn her engagement ring in any public appearance—or any images or videos shared on Kensington Palace's social media channels—since attending the ...