2 Answers
http://download.cnet.com/Quorum-Conference-Server/3000-2349_4-10580117.html
8 years ago. Rating: 1 | |
IWC hasn't as far link as I link know disclosed link the composition of the alloy but one possibility is that it's partly niobium there is a patent for a titanium alloy containing niobium from 2001 which says that heating the alloy to around 1500º Fahrenheit produces "a durable black surface layer consisting substantially of an oxide of niobium" but that's just semi-informed speculation.
1 month ago. Rating: 0 | |
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