Do you need the circle gold-plated metal domes? We are now also being promoted circle gold-plated metal dome. Circle gold-plated metal dome is plated gold on both sides of the metal dome, Mainly used in relatively high value of the membrane switches. Here are pictures of circle gold-plated metal domes: 
The performance of gold-plated metal dome is more stable than the ordinary metal domes, but prices are also higher. We buy materials directly from Japan, raw material with the gold-plated, so the performance and the quality is very reliable. Compare to some suppliers make metal domes first, and then plated gold, better in the gold plating with material: uniform, stable and reliable.
If you have needs of circle gold-plated metal domes, please feel free to contact us to request samples.