I'm not familiar with a specific reference to 宁夏伦敦金 which translates to Ningxia London Gold、However, I can try to provide some general information that might be related.

Ningxia, also known as Ningxia Hui Autonomous Region, is a region in northwest China known for its rich natural resources, including gold deposits、However, I couldn't find any specific information about 伦敦金 (London Gold) being related to Ningxia.

If you could provide more context or clarify what you mean by 宁夏伦敦金, I'd be happy to try and help further、Are you referring to a specific gold mine, a gold trading market, or something else?